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近期催化裂化消耗的催化剂成本一般是多少? 有了解的朋友请帮忙透漏下。 查看更多 4个回答 . 3人已关注
有用SMARTPLANT这个软件的吗? 现在正在弄这个软件,有人有教程吗?发上来一个查看更多 16个回答 . 2人已关注
汽轮机油使用完全功略? 汽轮机油使用完全功略 1、 汽轮机油的作用性能是什么? 答:汽轮机油亦称透平油,通常包括蒸汽轮机油、燃气轮机油,水力汽轮机油及抗氧汽轮机油等,主要用于汽轮机油和相联动机组的滑动轴承、减速齿轮、调速器和液压控制系统的润滑。汽轮机油的作用主要是润滑作用,冷却作用和调速作用。 2、 汽轮机油应具备哪些性能要求? 答:根据汽轮机油的作用特点,为确保汽轮机组的安全经济运行,汽轮机油必须具备:① 良好的氧化安定性;② 适宜的粘度和良好的粘温性;③良好的抗乳化性;④ 良好的防锈防腐性;⑤ 良好的抗泡性和空气释放性。 3、我国汽轮机油是如何分类的? 答:我国汽轮机油分类标准GB7631.10等效采用ISO6743标准将汽轮机油按其特殊用途分五大类十二个品种。其中蒸汽轮机油细分为TSA、TSC、TSD、TSE四种牌号,燃气轮机油细分为TGA、TGB、TGC、TGD、TGE五种牌号,其中TSA、TSE、TGA、TGB、TGE均为矿油型,TSE、TGE为极压型汽轮机油。 4、目前我国汽轮机油品种有哪些?规格标准是什么? 答:我国目前已标准化的汽轮机油有L-TSA(抗氧防锈)汽轮机油,标准为GB11120-89; 抗氨汽轮机油 ,标准为SH 0362-92;舰用 防锈汽轮机油 ,标准为国军标GJB1601A-98;此外,燃气轮机油已研制生产,标准为暂行技术规格。航空喷气机润滑油,标准为GB439-90;20号航空润滑油、航空涡轮发动机合成润滑油、4104号合成航空润滑油、4109号合成航空润滑油、4209合成航空防锈油等它们的标准号分别为GB440-88、GB1263-91、SH0460-92、GJB135-86和SH0416-92。5、抗氨汽轮机油与普通汽轮机油性能有哪些区别? 答:抗氨汽轮机油是用于氮气、[wiki]氢[/wiki]气和氨气为压缩介质的压缩机与汽轮机共用同一润滑系统的装置,与普通汽轮机油的最大区别在于用中性或碱性防锈剂代替普通汽轮机油中所用T746等酸性防锈剂,确保油品不与系统中氨起反应,生成白色絮状沉淀,以致影响机器正常运转。 6、燃气轮机油与普通汽轮机油相比有哪些特点? 答:燃气轮机由于具有节能及动力大特点,在运转过程中,润滑油受到高热表面作用,与空气(烟气)相混,以相当大的速率泵送和循环,并处于高压下使用,因此,要求燃气轮机油比蒸汽轮机油具有更优良的高温氧化安定性和抗磨性。 7、我国TSA汽轮机油有哪些品种?有何特点? 答:目前我国L-TSA汽轮机油产品标准为GB11120-89,该标准将汽轮机油按40℃运动粘度中心值分为32、46、68、100四个粘度等级(牌号),并分优等品,一等品和合格品三个质量等级,其中优等品为国际先进水平,一级品为国际一般水平。 8、汽轮机油使用中注意事项是什么? 答:汽轮机油在使用中应注意:① 尽可能防止汽轮机组漏气、漏水、漏电;② 回油温度控制在65℃以下;③ 油箱定期切水和放出杂质,保持油品清洁不受水、铁锈、沉淀物等污染。 9、汽轮机油维护时一般采取哪些措施? 答:为延长油品的使用寿命,应加强对运行中油的维护工作,可采取下列防劣措施:① 添加T501抗氧剂;② 补加T 746防锈剂 ;③ 随时清除油中[wiki]机械[/wiki]杂质、油,以便保证系统清洁度。 10、目前汽轮机油的换油指标有哪些? 答:目前我国已颁布的有L-TSA汽轮机油换油指标SH/T0636-96;抗氨汽轮机油换油指标SH/T0137-92和舰艇汽轮机油的换油指标GJB3714-89;另外GB7596-87和GB/T9939-86分别规定了电力部门和化纤化肥工业运行中的相关汽轮机油质量监控项目与指标。查看更多 0个回答 . 4人已关注
关于油漆问题? 不锈钢 一般技术条件表写:碳钢部分要求先进行除锈处理,再涂防锈底漆,最后涂 银粉漆 。 不锈钢一般跟人冷热轧 表面处理好基本不用涂漆。 碳钢 其一种:设备外表面进行喷砂处理,合格级别为st2.5级,并喷涂铁红醇酸防锈底漆两道,干膜厚度40um。 其二种:1、设备外表面进行喷砂处理,合格级别为st2.5级,并喷涂铁红醇酸防锈底漆两道,干膜厚度40um。 2、设备内表面进行喷砂处理,合格级别为st2.5级,并喷涂铁红醇酸防锈底漆两道,干膜厚度40um,再喷涂一道舰艇821耐油漆。 第三种:设备内、外表面进行除锈处理后再进行喷砂处理,合格级别为st2.5级,并喷防锈底漆两道,干膜厚度40um。 你们涂漆的时候大多数怎么来定,除了部分客户要求,但是也遇到很多客户条件上未提到油漆问题。还有什么时候用到面漆等等 我觉得《 压力容器 涂敷与运输、包装》 JB/T4711-2003这上面讲的太笼统。 大家各抒己见吧 互相学习下 查看更多 5个回答 . 3人已关注
大连理工的低温甲醇洗中,循环甲醇多长时间更换一次?依 ...? 新手问题多,请见谅!!查看更多 12个回答 . 1人已关注
填料吸收塔的负荷能否降到30%? 填料吸收塔 的负荷能否降到30%? 查看更多 3个回答 . 4人已关注
英文小说-中英文对照? My Miraculous Life I never considered myself unique, but people are constantly telling me, "you are a miracle." To me, I was just an ordinary "guy" with realistic goals and big dreams. I was a 19-year-old student at the University of Texas and well on my way toward fulfilling my "big dream" of one day becoming an orthopedic surgeon. 我从未觉得自己与众不同,但人们常对我说:“你的生命是个奇迹。”对我而言,我只是一个普通人,有着现实的目标和远大的理想。我曾是德克萨斯大学一名十九岁的大学生,在通向理想之路上信步前行,梦想有一天我会成为一名整形外科医生。 On the night of February 17, 1981 I was studying for an Organic Chemistry test at the library with Sharon, my girlfriend of three years. Sharon had asked me to drive her back to her dormitory as it was getting quite late. We got into my car, not realizing that just getting into a car would never quite be the same for me again. I quickly noticed that my gas gauge was registered on empty so I pulled into a nearby convenience store to buy '2.00 worth of gas. "I'll be back in two minutes," I yelled at Sharon as I closed the door. But instead, those two minutes changed my life forever. 1981年2月17日的晚上,我和交往三年的女友沙伦在为有机化学 测试 做准备。因为太晚了,沙伦叫我驾车把她送回宿舍。我们钻进汽车,谁能想到在今后的生命中我不能再如此矫健地重复这样一个简单的动作。我很快发现油表空了,于是我把车泊在附近的一家便利店旁,想买两块钱的汽油。“我两分钟就回来,”我关上车门朝沙伦喊到。但就是这短短的两分钟改变了我一生的命运,永远地改变了。 Entering the convenience store was like entering the twilight zone. On the outside I was a healthy, athletic, pre-med student, but on the inside I was just another statistic of a violent crime. I thought I was entering an empty store, but suddenly I realized it was not empty at all. Three robbers were in the process of committing a robbery and my entrance into the store caught them by surprise. One of the criminals immediately shoved a .38 caliber handgun to my head, ordered me to the cooler, pushed me down on the floor, and pumped a bullet into the back of my head -- execution style. He obviously thought I was DEAD because he did not shoot me again. The trio of thieves finished robbing the store and left calmly. 进入这家便利店就如同踏上了阴阳间的奈何桥,门外的我还是个健康的,活蹦乱跳的未婚大学生,而门内的我却成了暴力犯罪的又一个牺牲品。我还以为店里没有人,但我突然发现我错了——有三个匪徒正在打劫这家店,而我的进入让他们有些惊慌失措。其中一个匪徒迅速掏出一把口径为38毫米的手枪用力指着我的头,勒令我走到 冷冻机 旁,然后把我推倒在地,像执行死刑般从后面朝我头部开了一枪。他没再朝我开第二枪,显然他以为我死了。打劫完后三个劫匪逃之夭夭。 Meanwhile, Sharon wondered why I had not returned. After seeing the three men leave the store she really began to worry as I was the last person she saw entering the store. She quickly went inside to look for me, but saw no one-only an almost empty cash register containing one check and several pennies. Quickly she ran down each aisle shouting, "Mike, Mike!" 与此同时,沙伦对我的不归忧心忡忡。看到这三个匪徒离开便利店后她真的很担心,因为我是她见到的最后一个进入店里的人。她赶快跑进店来找我,只见几乎被一扫而空的收银机上挂着一张帐单,还有几枚硬币散落在上面,四周无人。她在货架间飞快地跑着、喊着:“迈克,迈克!” Just then the attendant appeared from the back of the store shouting, "Lady, get down on the floor. I've just been robbed and shot at!" 这时一名服务员从店后面走出来叫到:“小姐,过来一下,我刚才被打劫了,他们还向我开了枪。” Sharon quickly dropped to the floor screaming, "Have you seen my boyfriend? He has auburn hair." The man did not reply but went back to the cooler where he found me choking on my vomit. The attendant quickly cleaned my mouth and then called for the police and an ambulance. 沙伦跌跌撞撞地过来哭喊到:“你见到我的男朋友了吗?长褐色头发的。” 那人默默走到冷冻机旁,找到了我,此时呕吐快令到我窒息了。他赶忙帮我擦干了嘴,叫了警察和救护车。 Sharon was in shock. She was beginning to understand that I was hurt, but she could not begin to comprehend or imagine the severity of my injury. 沙伦被吓坏了。渐渐地她才明白我受伤了,但是她根本想象不到伤势的严重性。 When the police arrived they immediately called the homicide division as they did not think I would survive and the paramedic reported that she had never seen a person so severely wounded survive. At 1:30 a.m. my parents who lived in Houston, were awakened by a telephone call from Brackenridge Hospital advising them to come to Austin as soon as possible for they feared I would not make it through the night. 警察来了,他们很快断定是杀人案,因为没人相信我还能活过来,而救护人员说她从来没有见过伤势如此严重的人可以逃离死劫。下午一点半,我住在奥斯汀的父母被来自布莱肯瑞吉医院的电话铃惊醒,医院通知他们尽快赶到奥斯汀,因为他们认为我熬不过当晚了。 But I did make it through the night and early in the morning the neurosurgeon decided to operate. However, he quickly informed my family and Sharon that my chances of surviving the surgery were only 40/60. If this were not bad enough, the neurosurgeon further shocked my family by telling them what life would be like for me if I beat the odds and survived. He said I probably would never walk, talk, or be able to understand even simple commands. 但那晚我挺了过来,第二天清晨神经外科医生决定给我动手术。但他立即告知我的家人和沙伦我存活的机会只有百分之四十。然后他还雪上加霜地告诉我的家人,向他们描述如果我万幸活下来将面临怎样的生活——我可能再也不会走路了,不会说话了,甚至不能理解一些极其简单的命令。这些对我的家人来说都是莫大的打击。 My family was hoping and praying to hear even the slightest bit of encouragement from that doctor. Instead, his pessimistic words gave my family no reason to believe that I would ever again be a productive member of society. But once again I beat the odds and survived the three and a half hours of surgery. Granted, I still could not talk, my entire right side was paralyzed and many people thought I could not understand, but at least I was stable. After one week in a private room the doctors felt I had improved enough to be transferred by jet ambulance to Del Oro Rehabilitation Hospital in Houston. 本来家里人祈望能从医生的口中听到一点点鼓励的话,而他悲观的言语让他们没理由相信我还会成为一个对社会有用的人。在经历了三个半小时的手术之后,我再次侥幸地活了下来。医生的话得到了应验,我不能说话,整个右边的身体瘫痪了,许多人认为我变傻了,但至少我身体状况是稳定的。在私人看护病房里呆了一个星期后,医生觉得我已经好转了许多,并可以坐救护飞机转到奥斯汀的德欧洛康复医院。 My hallucinations, coupled with my physical problems, made my prognosis still very bleak. However, as time passed my mind began to clear and approximately six weeks later my right leg began to move ever so slightly. Within seven weeks my right arm slowly began to move and at eight weeks I uttered my first few words. My speech was extremely difficult and slow in the beginning, but at least it was a beginning. I was starting to look forward to each new day to see how far I would progress. But just as I thought my life was finally looking brighter I was tested by the hospital euro-psychologist. She explained to me that judging from my test results she believed that I should not focus on returning to college but that it would be better to set more "realistic goals." 意识上的幻觉和生理上的病疾使我的病情预断非常的渺茫。然而时间的飞逝使我的意识开始变得清晰,大约六个星期以后我的右腿可以轻微地活动了,七周以后我的右臂开始缓慢地活动了,八周以后我终于开口说话了。说话对于我非常地艰难并且开始的时候说得很慢,但是总算是开头了。我开始寄希望于新的一天的到来,祈望着新的进步。但正当我以为生活总算初露光明的时候,医院里有个欧洲来的心理学家对我做了测试。她向我解释到,从检测的结果来看她坚信我不能再重返学校,劝我对此不要抱有任何希望,希望我最好树立些更现实点的目标。 Upon hearing her evaluation I became furious for I thought, "Who is she to tell me what I can or cannot do. She does not even know me. I am a very determined and stubborn person!" I believe it was at that very moment that I decided I would somehow, someday return to college. 她的这番结论让我怒不可遏,“她是谁,凭什么告诉我能做什么或不能做什么。她根本不了解我。我是很坚强而固执的人!”我相信就在那时我决定无论如何,总有一天我会返回学校的。 It took me a long time and a lot of hard work but I finally returned to the University of Texas in the fall of 1983 -- a year and a half after almost dying. The next few years in Austin were very difficult for me, but I truly believe that in order to see beauty in life you have to experience some unpleasantness. Maybe I have experienced too much unpleasantness, but I believe in living each day to the fullest, and doing the very best I can. And each new day was very busy and very full, for besides attending classes at the University I underwent therapy three to five days each week at Brackenridge Hospital. If this were not enough I flew to Houston every other weekend to work with Tom Williams, a trainer and executive who had worked for many colleges and professional teams and also had helped many injured athletes, such as Earl Campbell and Eric Dickerson. Through Tom I learned: "Nothing is impossible and never, never give up or quit." 在经历了一年半垂死挣扎的生活后,在漫长的等待和艰辛的付出后,终于在1983年的秋天,我返回了德克萨斯大学。在奥斯汀接下来的几年里我生活得非常艰难,但我确信为了看到生活中的真善美你必须要经历一些苦难。也许我经历的苦难太多了,但我有一个信念——充实地过每一天,尽力做到最好。日子过的很繁忙、很充实,除了读书,每周我还在要在布莱肯瑞吉医院接受三到五次的治疗。如果这还不够忙的话,我还要隔周和汤姆·威廉斯飞到奥斯汀工作。汤姆是一个教练兼主管,他曾效力于许多大学校队和职业联队,并帮助过许多受伤的运动员,如:厄尔·坎贝尔和艾立克·迪克森。从汤姆的身上我学到“没有什么是不可能的,千万千万不要放弃,永不放弃。” Early, during my therapy, my father kept repeating to me one of his favorite sayings. I have repeated it almost every day since being hurt: "Mile by mile it's a trial; yard by yard it's hard; but inch by inch it's a cinch." 早在我接受治疗的时候,父亲总是重复他最爱的那句话,每天当我感到痛苦的时候我也对自己重复那句话,那就是“脚踏实地,切勿急功近利。” I thought of those words, and I thought of Tom, my family and Sharon who believed so strongly in me as I climbed the steps to receive my diploma from the Dean of Liberal Arts at the University of Texas on that bright sunny afternoon in June of 1986. Excitement and pride filled my heart as I heard the dean announce that I had graduated with "highest honors", been elected to Phi Beta Kappa, and been chosen as one of 12 Dean's Distinguished Graduates out of 1600 in the College of Liberal Arts. The overwhelming emotions and feelings that I experienced at that very moment, when most of the audience gave me a standing ovation, I felt would never again be matched in my life-not even when I graduated with a masters degree in social work and not even when I became employed full time at the Texas Pain and Stress Center. But I was wrong! 1986年六月那个阳光明媚的午后,当我步履蹒跚地走上德克萨斯大学迪安文学院的台阶接受文凭的时候,我思索着这些话,想到汤姆、父母还有沙伦,他们都那么坚定地给予了我信任。当我听到院长宣布我以最高荣誉毕业时,我的心中充满了骄傲和自信。接着他还宣布我被选入美国大学优等生荣誉学会,并在1600名毕业生中当选为12名迪安文学院的杰出毕业生之一。当场有许多观众站起来为我鼓掌,那一刻令我心潮澎湃、百感交集。我甚至觉得生命中不可能再经历那样的感慨和激情,这种想法一直延续到我获得社会学的硕士学位,成为德克萨斯止痛减压中心的一名全职工作人员。但幸运之神再次眷顾了我! On May 24, 1987, I realized that nothing could ever match the joy I felt as Sharon and I were married. Sharon, my high school sweetheart of nine years, had always stood by me, through good and bad times. To me, Sharon is my miracle, my diamond in a world filled with problems, hurt, and pain. It was Sharon who dropped out of school when I was hurt so that she could constantly be at my side. She never wavered or gave up on me. It was her faith and love that pulled me through so many dark days. While other nineteen year old girls were going to parties and enjoying life, Sharon devoted her life to my recovery. That, to me, is the true definition of love. After our beautiful wedding I continued working part time at the Pain Center and completed my work for a masters degree. We were extremely happy, but even happier when we learned Sharon was pregnant. 1987年5月24日,我觉得再没有什么能与此时的快乐相提并论,我和沙伦结婚了。沙伦是我高中时代的女友,风风雨雨九年来,她一直陪在我身旁。对我来说,她是我的奇迹,是我在这个充满困惑和伤痛的世界上拥有的一颗钻石。为了能日夜守侯在我的身旁,沙伦在我受伤的时候放弃了学业。她的爱从未动摇过,她从未抛弃过我。是她的忠诚和爱伴着我度过了无数个黑暗的日子。当别的十九岁的女孩子参加舞会、享受生活的时候,沙伦把青春献给了病床上的我,等待我的康复。对我来说,这就是爱的真谛。在那个美满的婚礼之后,我继续在止痛中心做着兼职的工作,并获得了我的硕士学位。我们非常的幸福,而沙伦怀孕的消息更让我们恩爱有加。 On July 11, 1990 at 12:15 a.m. Sharon woke me with the news: "We need to go to the hospital… my water just broke." I couldn't help but think how ironic it was that my life almost ended in a convenience store and now on the date "7-11" we were about to bring a new life into this world. This time it was my turn to help Sharon as she had helped me over those past years. She was in labor for 15 hours. At 3:10 p.m. Sharon and I experienced the birth of our beautiful daughter, Shawn Elyse Segal! Tears of joy and happiness came to my eyes as our healthy, alert, wonderful daughter entered this world. We anxiously counted her 10 fingers and her 10 toes and watched her wide eyes take in the world about her. It was truly a beautiful picture that was etched in my mind forever as she lie in her mother's waiting arms, just minutes after her birth. At that moment I thanked God for blessing us with the greatest miracle of all-Shawn Elyse Segal. 1990年7月11日12点15分,沙伦把我从梦中唤醒:“我们得去医院了……我羊水破了。”我忍不住想命运真让人啼笑皆非,它几乎让我在那家便利店里丢了性命,而在一个命名为“7·11”的日子里它却让我迎来新生命的出世。多年来沙伦帮我度过了一次又一次难关,这次该我来帮助她了。沙伦经历了15个小时的分娩。在3点10分的时候,沙伦和我一起迎来了我们美丽的女儿——萧恩·艾丽斯·斯高。当我看到美丽的女儿健康地来到这个世上,喜悦和幸福化作泪水夺眶而出。我们迫不及待地数着她的十个手指和十只脚趾,看着她大大的眼睛注视着她的世界。初生的婴儿躺在妈妈柔软的怀里如一副优美的图画将永驻我的心中。那一刻,我感谢上帝赐予我们如此最伟大的奇迹——我的萧恩·艾丽斯·斯高查看更多 11个回答 . 3人已关注
关于should的用法,这句话怎么翻译?【原主题:round of ...? round off lower end of stud to prevent galling of internal thread, should stud inadvertently be removed. 帮助翻译,谢谢。 标题为我的猜想难点,请楼主自行斟酌修改原帖。-lete 查看更多 5个回答 . 4人已关注
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溴和醚会反应吗? < > 最近做一个溴化反应,用醚作溶剂,要求先将溴加到溶剂中,再滴加进行反应。问题是我将溴加到溶剂中后,溴发生了剧烈沸腾,冲出了滴液漏斗。我用的醚是用 金属钠 回流除水干燥的,难道醚与溴反应?请指教。</P>查看更多 6个回答 . 5人已关注
求助2013加氢资料? 论坛里的各位兄弟姐妹们,2013马上就要结束了,有今年加氢年会或者其他年会资料的兄弟们,传点上来吧,作为2013年的完美收官。 查看更多 2个回答 . 3人已关注
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隔板精馏与热耦合技术进展及工业化应用? 会议背景: 精馏技术是化学工程的核心内容之一,对炼油、 煤化工 、石化、精细化工等行业的可持续发展具有十分重要的意义。近年来,随着资源短缺、环境保护和碳减排的压力越来越大,使用先进的过程强化技术来降低能耗、降低碳排放已成为研究的热点。隔板精馏和热耦合技术是新兴的节能精馏技术,例如,通过对传统的二塔和三塔工艺进行升级改造、整合反应与精馏分离过程、萃取精馏整合、共沸精馏整合、间歇精馏连续化、MRV热泵精馏与蒸发...,能够大幅度(30%-55%)降低能耗和设备投资,可增强企业的核心竞争力,实现化工行业的绿色制造和碳减排,因而成为世界范围学术及工程界的关注 焦点 。 为帮助从事精馏单元设计、研发、生产制造和应用专业技术人才了解隔板精馏与热耦合技术的工艺路线选择、主要设备的设计选型、及模拟计算技术的最新进展,促进隔板精馏与热耦合技术的工业化应用,中国石油和化学工业联合会培训中心联合化工707论坛、中国石油大学、天津奥展兴达化工技术有限公司计划于2016年3月下旬在湖南长沙市举办“隔板精馏与热耦合技术进展及工业化应用交流研讨会”。 会议交流研讨内容: 1、隔板塔精馏技术进展及面临的挑战 报告人: Dr. Zarko Olujic 荷兰代尔夫特理工大学教授/德国蒙茨顾问 2、隔板 精馏塔 的研究进展 报告人: 薄德臣高工 中石化抚顺石化研究院 3、隔板精馏塔模拟、优化及控制 报告人: 孙兰义教授 中国石油大学 4、隔板精馏塔气体分配及控制装置 报告人: 陈文义教授 河北工业大学 5、基于液流控制的隔板两侧气流分配控制装置及方法 报告人: 张兵 总工 天津奥展兴达化工技术有限公司 6、隔板精馏工业化技术的关键点 报告人: 凌昊 教授 华东理工大学 7、隔板精馏塔工业化设计关键技术及开车运行经验 报告人: 刘铁勇 部长 北京泽华化学工程公司 8、精馏塔热耦合技术 报告人: 李士雨 教授 天津大学 9、萃取精馏隔壁塔工艺模拟及优化 报告人: 孙立军 副总经理 天津普莱化工技术有限公司 10、隔板塔精馏过程研究与工业化应用 报告人: 李春利 所长 河北工业大学化学工程研究所 会议时间: 2016年3月24日(周四 全天) 全天注册报到 2016年3月25日(周五 全天) 交流、研讨、答疑 2016年3月26日(周六 上午) 交流、研讨、答疑 2016年3月26日(周六 下午) 现场参观装置 会议地点: 湖南·长沙市 主办单位: 中国化工学会培训中心 中国石油和化学工业联合会培训中心 出席会议须知: 会务费: 标准费用:□ 国内代表 2200元 □学生 1400元 □国外代表 400美元 预先汇款:□ 国内代表 2000元 □学生 1200元 □国外代表 350美元 *注:会务费含资料费及餐费,住宿统一安排,费用自理。3月15日之前提前汇款报名享受预先报名优惠,团体报名3人以上享受团体优惠,其他情况不做优惠。请在选定规格前划“√”。 会务组联系方式 : 联系人:吉萍 电 话:021-52808220 传 真:021-52815269 E-mail: chinapxzx2010@vip.163.com 联系人:张兵 电 话:022-87458895 传 真:022-87891101 E-mail: 472573022@qq.com 欢迎参加本次交流会!也欢迎加入微信交流群,名称“隔板精馏塔会议”,通过交流探讨促进技术的发展与进步! 查看更多 0个回答 . 4人已关注
写先进事迹? 我在反应内操干了有三个多月了,今天突然把我评个先进,我有点不知所措。因为要写篇个人先进事迹,我无从下手,请各位老师指点下怎么写?查看更多 2个回答 . 5人已关注
求助 设计一自动上水系统? 买个计(定)时器,时间到了就输出一个DO点,触发 潜水泵 。这个回路中再串接一个 液位开关 信号,当液位高时,就切断回路,潜水泵停掉查看更多 8个回答 . 2人已关注
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CO2汽提法采用低压开车法应如何操作和注意哪些问题? 按设计CO2汽提法应采用低压开车法,我想请问下:CO2汽提法采用低压开车法应如何操作和注意哪些问题? 谢谢!查看更多 5个回答 . 3人已关注
简介
职业:福建闽海石化有限公司 - 销售
学校:西安建筑科技大学 - 智能建筑与楼宇自动化
地区:青海省
个人简介:毫无经验的初恋是迷人的,但经得起考验的爱情是无价的。查看更多
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