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大家觉得做压力容器设计的待遇怎么样?还是想回归本专业 ...? 虽然 刚毕业 ,但还是很看好这行的.....查看更多
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焊接工艺评定报告 焊脚差? 好好看一下gb/t3375-1994 p79页 2.69和2.70就应该明白了。 查看更多
浮阀怎么翻译呢? 浮阀 float valve 浮阀塔板 valve tray查看更多
初学软件的一些初级问题? 我就回答我知道的。 1.from 10 to 20 和from 100 to 200没有区别。但是,假如你做的模型比较大,每隔100设置一个节点,那做到后面,节点数就不够了。系统默认节点范围1-32000。 我一般是每隔20做一个,中间可以断点做支架。支架点节点号是5或10,比较好辨认。 2.mill tol是热轧钢管壁厚允许偏差 通常是用在计算壁厚方面。系统会自动设置为±12.50,也可以根据需要改为±0.40。但我没改过。 hydro pressure 是水压试验的压力 3. guide的设置是导向,假如是水平管,x向布置,那么,guide和z一致的。同理,z向布置,guide和x一致。 但是,假如是垂直管,guide是x和z的组合,属于四向限位。你模拟试试就知道了。 第四个问题我不知道。查看更多
2009全国职称英语等级考试国家教材同步配套模拟试卷(理 ...? 由职称外语等级考试研究中心编写。共8套试卷。 我没扫描的。只人工输入部分试卷,后面将陆续更新。 谁有电子版的,非常希望共享出来。 全国职称外语等级考试 英语理工类c级模拟试卷 (第一套) 第一部分:词汇选项 1. people don’t realize how serious this problem has actually been. a. think b. know c. remember d. doubt 2. we should never content ourselves with a little success only. a comfort b convince c satisfy d benefit 3. we should consider the problem from all perspectives. a design b think c describe d deliberate 4. she abandoned her husband and children and went off with another man. a. refused b hated c left d arranged 5.i meant to give you this book today, but i forget. a intended to b extended to c tended to d pretended to 6. as a matter of fact , i love beer more than wine. a actually b probably c basically d accurately 7. cement was seldom used in building the middle ages. a crudely b rarely c originally d occasionally 8. the findings showed a substantial difference between the opinions of men and women. a. a superficial b an inevitable c a large d an inefficient 9. we were astonished to hear that their football team had won the champion. a amazed b amounted c amused d approached 10. there is an abundant supply of cheap labor in this county. a a steady b a plentiful c an extra d a stable 11. the most crucial problem any economic system faces is how to use its scarce resources. a puzzling b difficult c terrifying d urgent 12. there is no fun in spending the whole evening watching tv. a enjoyment b strength c temper d excitement 13. on thanksgiving in the united states, families gather and give thanks for the blessing of the past year. a pick up b come together c compete d correspond 14. in mary’s eyes, the hotel at the corner of the street is a very smart one. a clever b elegant c loyal d brave 15. the local residents were angry at the lack of parking spaces. a restaurants b inhabitant c visitors d departments 第二部分:阅读判断 heart disease and green tea a few cups of green tea each day may help prevent heart disease, greek researchers said on wednesday. a study published in the european journal of cardiovascular prevention and rehabilitation showed further evidence of the potential health benefits from brew already linked to a reduced risk of a range of cancers and other conditions. the study showed that green tea improves blood flow and the ability of arteries to relax, said charalambos vlachopoulos, a cardiologist at the athebs medical school in greece who worked on the study, other studies have shown that black tea also has benefits for cardiovascular health. the greek team said they believed green tea might be even better because it had higher quantities of beneficial compounds called flavonoids --- some of which are lost in the oxidation process that black tea undergoes. flavonoids are also found in cocoa, tomatoes and grapes. “a couple of cups a day would probably be a good does for people,” vlachopoulos said. “this is the first study to show these effects for green tea.” the researchers gave 14 healthy volunteers either green tea, diluted caffeine or hot water and then measured the function of endothelial cells lining the circulatory system. these cells help relax arteries and ease blood flow. “what is important is these effects are evident fairly rapidly, within 30 minutes,” vlachopoulos said. the measurement taken 30, 90 and 120 minutes following consumption showed an almost immediate benefit among people who had drunk green tea ,he said. while the researchers lookede only at a short-term impact, vlachoplous said the team’s studies suggest the protection is long lasting. “green tea is consumed less in the western world than black tea, but it could be more beneficial because of the way it seems to improve (circulatory) function,” he said. 16. according to the greek reserrchers, hacing seceral cups of green tea each day may help prevent heart disease. a right b wrong c not mentioned 17. there are no studies done to prove that black tea is good for cardiovascular health. a right b wrong c not mentioned 18. the study shows that green tea and black tea are of the same benefits to cardiovascular health. a right b wrong c not mentioned 19. we can find flavonoids in cocoa, tomatoes and green teas. a right b wrong c not mentioned 20 .the healthy volunteers feel comfortable and exciting after drinking green tea. a right b wrong c not mentioned 21. the researchers have made long-term studies on the impact of green tea to the health of human body. a right b wrong c not mentioned 22. green tea is not as popular as black tea in the world. a right b wrong c not mentioned a 查看更多
cad中要画一条到已知线定距离的线除了offset还有什么办 ...? 开启对象追踪,鼠标控制线的角度,用复制命令,然后直接输入长度,效果与offset一样。查看更多
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请教催化加氢还原.急死了.? pd/c作催化剂,常压,你可以不用氢气钢瓶,用一个恒压装置,可以观察氢气的使用量确定你的反应进行到什么程度,很好用的,我做过的查看更多
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DN950法兰选用什么垫片好? dn950法兰原选用波齿垫,介质330摄氏度,压力1.7mpa。查看更多
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用微波法做反应? 纸上谈兵,你上dxy搜一下微波反应综述吧,应该有用查看更多
来自话题:
燃烧器不好点火? 有可能是燃气量不够查看更多
2,6-二氯氟苯aspen中没有,如何添加? 在components\specification\enterprise database页面 本人新手,求截图,我实在没找到 查看更多
看不懂英文?——适合国人学习的aspen中文培训资料? 楼主真实相当给力啊 查看更多
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常用化工设备零部件? 看看!先赞一个查看更多
什么是形象工程? 一方领导都希望在自己的任期内作几个形象工程,实际上很多项目建成之日即是项目停工之时。查看更多
HTRI各类问题讨论区,欢迎大家提问? 简单问题。。。重沸器如何计算?用的那个模块?这个壳程水位怎么控制的?htri余热锅炉可以算吗,汽包怎么处理?查看更多
如何管好工艺指标? 1、必须懂工艺流程,不需要有多么的专业但是首先不被蒙; 2、当然重点还是落在管理上,有一套好的考核办法; 3、深入车间,对于不好控制的或者经常超标的现象,找出其原因,共同商量对策,适当修改指标;查看更多
GSP技术? 本文由 盖德化工论坛 转载自互联网 这两年,德国gsp技术很是热门,号称综合了shell和texaco的优点.不知在国内应用情况如何,而且听说淮南煤在德国进行了试烧,但是一直没有看见试烧的报告.各位大侠对此问题有何看法?查看更多
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水露点的问题,有知道的吗? 同样的微水含量,在不同压力下,露点值不同。有换算对应公式。 在线测量最好常压测量。在线露点仪有电容式和镜面式两种,你们是哪种原理的?查看更多
来自话题:
HGT20570.3-1995爆破片选用规定? 如果你看到面前的阴影,别怕,那是因为你的背后有阳光。 偶啥时才能熬出头啊. 查看更多
物性数据估算? warning in physical property system functional group generation for the orrick-e method cannot be completed for component yijing1. the following atoms were not matched: n 12 the functional groups generated group number no. of occur. group number no. of occur. 105 1 116 1 102 2 100 9 请问高手这是什么意思?谢谢!查看更多
简介
职业:空气化工产品(中国)投资有限公司 - 设备维修
学校:西安航空职业技术学院 - 航空工程及自动化系
地区:云南省
个人简介:在人生的道路上,当你的希望一个个落空的时候,你也要坚定,要沉着。查看更多
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