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化工自动化
用PROii能模拟固定床吧? 回复 2# douglas thank you very much!查看更多
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请教搪瓷反应釜问题? 这个浓度的应该问题不大查看更多
注册化工证市场行情讨论? 哈哈我们单位也才1500 挂到自己单位都很少,1500真的不少了。查看更多
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过程装备与控制工程考证? 想先考个压力容器设计审核证查看更多
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溶剂再生塔温度提不起来的原因及措施? 我们一般是控制在25%左右,塔压在60kpa左右,塔底温度在110左右。查看更多
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卧式容器接管应力用WRC107还是WRC297? 4. 5. 15壳体和成型封头上由接管外载荷引起的局部应力 在壳体和成型封头上接管所在处的局部应力应采用下述方法之一评定,对每一种方法,应按照第5篇的合格准则。 a)圆筒上的接管-----应按照wrc 107或wrc297公报进行应力计算. b)成型封头上的接管-----应按照wrc 107公报进行应力计算. 因此:圆筒上的接管按照wrc 107或wrc297公报都是可以的. 查看更多
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关于阀门的电源故障问题? 这个简单,如果失气时关,失电时关,选择的电磁阀是带电1-2通,断电2-3通,气路接电磁阀1,2端;那么现在失气时关,失电时开,选择的电磁阀是带电2-3通,断电1-2通,气路接电磁阀1,2端;查看更多
关于管径的选择? 泵入口选1-1.5m/秒查看更多
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压力容器常识? 很神秘的样子查看更多
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之消防安全隐患 !? 收藏了,加分....查看更多
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写英语论文最常用的表达方式? 英语学术论文常用经典句型 beginning 1. in this paper, we focus on the need for 2. this paper proceeds as foow. 3. the structure of the paper is as foows. 4. in this paper, we sha first briefy introduce fuzzy sets and reated concepts 5. to begin with we wi provide a brief background on the introduction 1. this wi be foowed by a description of the fuzzy nature of the probem and a detaied presentation of how the required membership functions are defined. 2. detais on xx and xx are discussed in ater sections. 3. in the next section, after a statement of the basic probem, various situations invoving possibiity knowedge are investigated: first, an entirey possibiity mode is proposed; then the cases of a fuzzy service time with stochastic arrivas and non fuzzy service rue is studied; asty, fuzzy service rue are considered. review 1. this review is foowed by an introduction. 2. a brief summary of some of the reevant concepts in xxx and xxx is presented in section . 3. in the next section, a brief review of the .... is given. 4. in the next section, a short review of ... is given with specia regard to ... 5. section 2 reviews reevant research reated to xx. 6. section 1.1 briefy surveys the motivation for a methodoogy of action, whie 1.2 ooks at the difficuties posed by the compexity of systems and outines the need for deveopment of possibiity methods. body 1. section 1 defines the notion of robustness, and argues for its importance. 2. section 1 devoted to the basic aspects of the fc decision making ogic. 3. section 2 gives the background of the probem which incudes xxx 4. section 2 discusses some probems with and approaches to, natura anguage understanding. 5. section 2 expains how fexibiity which often ... can be expressed in terms of fuzzy time window 6. section 3 discusses the aspects of fuzzy set theory that are used in the ... 7. section 3 describes the system itsef in a genera way, incuding the ….. and aso discusses how to evauate system performance. 8. section 3 describes a new measure of xx. 9. section 3 demonstrates the use of fuzzy possibiity theory in the anaysis of xx. 10. section 3 is a fine description of fuzzy formuation of human decision. 11. section 3, is deveoped to the modeing and processing of fuzzy decision rues 12. the main idea of the fc is described in section 3 whie section 4 describes the xx strategies. 13. section 3 and 4 show experimenta studies for verifying the proposed mode. 14. section 4 discusses a previous fuzzy set based approach to cost variance investigation查看更多
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碘化物的精制与干燥? 可以真空干燥,避光。最好买点含量高的不就行了。也不贵。查看更多
如何过职称英语? 买职称英语的书看看应该就能过吧,好多都是上面的查看更多
今天拆了个衬氟球阀-供大家参考? 动手能力很强啊查看更多
装置开工出现过的问题? 催化装置,在开工中准备喷油前,分馏塔空冷后油气管线有一砂眼,导致分馏塔退油,吹扫,沉降器转剂,二再卸剂,一再单容器流化,喷燃烧油维持床温!可以说是功亏一篑。查看更多
GB_T 19326-2012.锻制承插焊、螺纹和对焊支管座? 我下到了,谢谢楼主 不客气。好东西大家共享嘛。 查看更多
考注化的朋友进来讨论下? 有盗版的有错的!查看更多
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调节合成塔温度和压力的原理及方法? 调节合成塔温度和压力的原理及方法有哪些 ? [ ]查看更多
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关于钢板厚度负偏差。? 楼主说的这个情况应该是普板,或者低合金,肯定不是容器板。这是6厚用5.75叫带点,用的是卷材。因为5.75卷板便宜,现货充足,而6厚则贵些。这是河南钢达作为钢材销售的方面为您解答,希望有用处。我们致力于特殊钢材服务专家,欢迎技术咨询。有特殊材料,可以咨询我们。查看更多
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重整循环氢流量表? 硫中毒主要是影响催化剂的金属中心,相当于提高了催化剂的酸性,裂化反应加剧。循环氢中c3/c4增加,相当于循环氢质量上升,循环氢密度不变,造成流量表的体积(nm3/h、)增大。个人见解。查看更多
简介
职业:广东光华科技股份有限公司 - 化工自动化
学校:陕西理工学院 - 历史文化系
地区:福建省
个人简介:友谊是灵魂的结合,这个结合是可以离异的,这是两个敏感,正直的人之间心照不宣的契约。查看更多
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