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低温储罐增压器问题? 是空浴式的么 如果是,那么建议加一组 轮流切换使用查看更多
火炬上的消烟蒸汽的消烟原理是什么? 虽然是个新手,但是通过本贴已经可以清楚的了解消烟蒸汽的原理,请教几个问题,第一,蒸汽的压力有无要求?第二,流量如何计算,有说是火炬气的10—50%量,但是针对分级燃烧同时火炬气流量不固定的情况下,如何实时调整?第三,能不能再解释一下托举高度和刚性的原理?谢谢了查看更多
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国家什么时候对氮氧化物排放进行限制? 不明白你们公司是什么污染物,肯定要先达排放标准和质量标准,质量标准其实就是你的总量控制依据,当然也要看当地政府要求查看更多
CAD涂层怎么分,比较方便。? 提前设定好几个常用的图层,然后用鼠标点中你要要变图层的线,然后在图层工具栏中,直接改成你需要的图层就可以了。在设定图层时,你可根据需要设定线宽,线型以及颜色。查看更多
氯碱淡盐水浓缩热泵技术工艺? 大哥,帮忙设计一套成不? 你是真的假的??? 我以前在的厂子老板 就自己做了套热泵蒸馏设备。 就是缺很多自动控制的东西。 就是那个泵贵点18万左右。 小型的应该能做 查看更多
2010年一道专业考试题求解? 这是考的污染源等效计算,和环评有关,呵呵查看更多
求芳烃油、环烷油调和资料? 你调哪方面的指标??????????????qq411469491 化学特性以及物理特性,谢谢 查看更多
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各位大神帮忙解答下pid中控制仪表功能? 图2中液位开关ls30103后面is303的功能? 标识ls30103可以触发is303联锁 搞明白了,原来是sis系统,哈哈查看更多
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求助有关腈水解? 貌似楼主缺乏做开发的思路。 首先,不是说全部溶解就一定反应完全了。cn的水解有酰胺的中间态。你这个两个cn,想想看有多少中间产物吧。是不是得到你要的东西我看比较难检测。机型大,水溶性大,未必能用lc/ms检测。 第二点,不知道你要什么产物,是二酸吗?如果是,显然,这是个两性化合物。酸化的终点要合适,否则成盐也难办。 还有,干嘛不用吡啶-2-甲胺和丙烯酸甲酯做两次michael 加成,水解这个甲酯要容易的多。查看更多
好的英语是“读”出来的? 改变人生的100个方法(1) 希望快乐、成功、致富是人心底或强烈的?求,然而事实却是,我们受沮丧、挫折、不良的习惯与负面的想法的折磨。 1. create a vision. * create a vision of who you want to be and live into that picture as if it's already true. you create it, you don't wait until you receive it. you can make it up. 2. tell a true lie. make up a lie about how great you are to make yourself sound unbelievably wonderful. think of a picture of who you want to be. without that picture, you can't live up to that self. 3. leave your comfort zone. * our society encourages us to seek comfort. and yet only challenge will test our skills and make us better. only challenge and the self motivation to engage that challenge will transform us. and every challenge we face creates a more skillful self. look for challenges to motivate yourself. it's up to you to notice your stuck in a comfort zone. it's up to you to break free from it and fly away. 4. find your key. book: "the master key to riches" by napoleon hill. "the great master key to riches is nothing more or less than the self discipline necessary to take complete full control of your own mind. remember the only thing you have complete control is your own mental attitude." maybe the hill book is not your "key", but you'll find your own instruction book if you look for it. it's out there, waiting for you. 5. plan your work. * when your too depressed or when your too upset to start something new. but then that's the perfect time to learn life's important rule. the rule is the transmutation of those negative emotions through "definitely planned work." definitely planned work is the path to self motivation after you create your vision of who you want to be. definitely planned work contained the power of purpose. one hour of planning saves three hours of execution. it is impossible to work passionately with a sense of purpose and feel depressed at the same time. successfully planned work will motivate you to do more and more than you ever thought possible. 6. move your goal posts. most people don't realize the reason their not getting what they want in life is because their major goals are too small and too vague. and therefore have no power. your major goal will not be reached if it fails to excite your imagination. what really moves you is to set a large and specific power goal. a power goal is a dream that drives you. people that create power goals are living on purpose. they know what their up to in life. you know you had a power goal by observing it's effect on you. it's not was a goal is that's important, it's what it does. 7. dribble with your other hand. it's not that you can't, it's that you haven't. you need to start reprogramming your habits of thinking. you can think optimistically if you build it up slowly one thought at a time. i.e. with small persistent incremental victories. 8. play your character. how you act is who you become. we can get energy and motivation by doing the character who we want to be. we can become that character if we practice being that character all the time. 9. don't just do something, sit there. sit quietly and do absolutely nothing. be alone for a long time all by yourself. sitting in silence allows your true dream in life to take shape and clarity. in life today, your either living your dream or someone elses. and unless you give your dreams the time and space it needs to express itself, you'll live the better part of your life living the dreams of other people. 10. use the right chemicals. use the chemicals that already exists in your system when you laugh, sing, dance, hug someone. when your having fun, your body chemistry changes. once you make a job fun, you solved the problem of self motivation.查看更多
法兰根部出现漏液怎么处理?? 建议液体带压堵漏,一般的问题都能解决,气体用木签先顶起来停车时处理,因为法兰焊接面不规则不好打紧固查看更多
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趣味隐患系列46之周末大放送--这个时候好希望自己是个胖 ...? 所以说要进行演练,说说简单,真正应用时未必能得心应手。 平时多流汗 战时少流血 ----------------------- 这样嘻嘻哈哈的培训,起不到效果 查看更多
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汽提塔或蒸馏塔进料组成变轻的有什么危害?如何处理? 楼上回答比较全面,但如果塔进料组成突然变的很轻,首先要降量,保证安全生产,靠加大回流压不住。查看更多
求助煤气鼓风机问题!? 不必要的投资浪费,风机的煤气进出口温度是可以控制的。查看更多
焦饼为什么少一块? 不知贵厂煤饼与炉门砖间隙设置多少,如过大,在托煤板回收的过程中,会造成煤饼上部倾塌,推焦前摘掉焦侧炉门,楼主看一下下部焦饼,是否紧贴炉门焦饼中心裂纹不明显?还有挡煤板倾角小,也会造成倾塌。查看更多
安全指导精神究竟有多少? 上面的只是理论指导,无论什么体系,都是空谈。 主要是在装置内部,从车间主任到一线员工他们重视了才行!去关注怎样调动他们的积极性吧。查看更多
来自话题:
带循环的计算老是出错? 我之前遇到算循环出问题 然后把循环算法换成broyden就好了 我开始用的是newton算法,改成broyden之后还是没有解决,还是谢谢了查看更多
关于镍溶液净化钴的问题? 大家交流一下,50克升的含镍溶液,钴1克升,除了萃取分离,黑镍除钴,次氯酸钠除钴,还有别的办法么?除钴的同时不能带入其他金属离子和氯,我用的过硫酸铵,有哪位用过,具体怎么操作的,交流一下查看更多
PDF转换CAD的小软件!今天刚刚找到!免费版的? 楼主你好 发我一份 谢谢啦 fryya 查看更多
关于板式换热器的基本构造和原理分析  ? 看了楼主的帖子后,我终于忍不住回帖了,在网络上我并不经常回帖,可是楼主在 这个帖子里面的表现之优秀,让我觉得不能错过这个机会。查看更多
简介
职业:宁波大通永维机电工程有限公司 - 销售
学校:黄冈师范学院 - 化学与应用化学学院
地区:广东省
个人简介:伟大的思想能变成巨大的财富。查看更多
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