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给排水工程师
危险化学品企业怎样划分防火防爆等级?? 危险化学品企业怎样划分防火防爆等级? 要求:1、划分依据。 2、划分步骤。 3、划分方法。 4、等级相应的技术措施、管理措施。 请各位盖德畅所欲言!查看更多 1个回答 . 3人已关注
heck反应催化剂三(邻甲苯)膦? 近期要做α,β-不饱和内酯的heck反应,文献中用三(邻 甲苯 )膦与 醋酸钯 配位,这个化合物那位大侠用过,买多大含量的就能顺利反应,95%的400多,98%几乎800,选哪个好呢?能用便宜的 三苯膦 代替吗?文献上说用三苯磷收率会低一半,40%。 请用过的人指点! 查看更多 2个回答 . 3人已关注
请问PDMS上软管如何建库? 请问:在PDMS上碰到象软管那样非定型的东西,该如何建库?查看更多 13个回答 . 2人已关注
硫酸钠在甲醇的溶解度? 硫酸钠 在80%左右的 甲醇溶液 中的溶解度查看更多 2个回答 . 1人已关注
Aspen中Calculation method选用Excel出错? 在Calculator的Calculate中,有两项:Fortran和Excel。我选用Excel时,弹出Unable to create Excel file from Template。 请教如何解决!谢谢!查看更多 7个回答 . 2人已关注
关于汽轮机排汽温度的问题? 一台杭州中能的凝汽式 汽轮机 ,功率1800kw。现象是: 凝汽器 负压-0.06MPag,汽轮机后轴封处冒汽管有蒸汽冒出,缸体上排汽温度达到100-118°C,凝液温度不足40°C。而设计排汽温度应在90°C以下,不知道问题出在哪儿了。请专家给予指点。查看更多 1个回答 . 3人已关注
用反渗透方式制取的纯净水是否适合长期饮用? 有人说里面微量元素没有了,缺营养,长期饮用对健康不利。 有人说无任何影响,可以通过食物补充,还不容易的结石病。 到底哪一种说法正确,有没有确切的依据。 查看更多 31个回答 . 3人已关注
重整停车的顺序? 重整停车的顺序再生?预加氢?还是重整? 查看更多 5个回答 . 1人已关注
硫比值分析仪? 请教各位大神,硫比值分析仪光谱图中吸光度为负怎么回事 查看更多 1个回答 . 1人已关注
双语新闻(021):土豪”有望被收入牛津词典? 免责声明: 本文转自China Daily,仅用于英语爱好者学习与交流之用。任何个人与团体不得使用本主题内容用于任何商业目的,否则责任自负。感谢 China Daily。 土豪”有望被收入牛津词典 ‘Tuhao’ may become part of English glossary China’s new buzzword, tuhao, may be in next year’s Oxford English Dictionary. The word caught the attention of the dictionary’s editing team after BBC’s recent program on influential Chinese words. “If its influence continues, it is very likely to appear on our updated list of words,” said Julie Kleeman, project manager with the editing team. Kleeman told the Beijing Youth Daily that tuhao has some similarities with the English word bling, which refers to expensive, ostentatious clothing or jewelry. Both the words have existed for long but later on took a new meaning. In Chinese, tu means uncouth and hao means rich. It has traditionally been referred to rich people who throw their weight around in China’s rural areas. In recent years, people in the ACG (anime, comic and game) circle borrowed the term to describe those who spend money in an irrational manner. The word gained credence in September with the launch of Apple’s new gold-colored iPhone, an item loved by China’s nouveau riche. The color became known as “tuhao gold.” The word is now often used by the online community to refer to people who have the cash but lack the class to go with it. Kleeman also mentioned two other Chinese words — dama and hukou — which may also make it into the dictionary. Hukou means household registration in Chinese and has been widely used by Xinhua news agency and China Central Television. It has become a hot word in recent years because of its links with corruption cases. Dama, meaning middle-aged women, was first used in the Western media by the Wall Street Journal in May when thousands of Chinese women were buying up record number of gold. They were the driving force in the global gold market between April and June when the gold prices had slumped. Lianghui is another Chinese word that may be included in the dictionary. It is actually a Chinese abbreviation for the National People’s Congress and the National Committee of the Chinese People’s Political Consultative Conference. The domestic media have been using lianghui regularly and overseas media have followed suit. People can have an “intuitive” grasp of the meanings if they see pinyin, Kleeman said, adding that people avoided using an English word to retain the original meaning. “We have nearly 120 Chinese-linked words now in Oxford English Dictionary,” she said. Some of them are: Guanxi, literally meaning “connection,” is the system of social networks and influential relationships which facilitate business and other dealings. Dim Sum originates from Cantonese dialect and refers to a Chinese dish of small steamed or fried savory dumplings containing various fillings. Taikonaut is a mix of taikong, meaning outer space, and astronaut. The new words will be first uploaded on the official website before the dictionaries arrive. The online version is also renewed every three months. “It at least broke our old rules. It used to take 10 years to include a new word but now we keep the pace with the era,” according to a statement issued by ex-chief-editor John Simpson. 游客,如果您要查看本帖隐藏内容请 回复 查看更多 0个回答 . 3人已关注
动态蒸汽吸附法在建筑材料研究领域有哪些应用? 是不是不应该发帖到此?查看更多 0个回答 . 4人已关注
催化裂化装置临界喷嘴的作用? 催化裂化装置临界喷嘴的作用?如果取消了,会有啥后果?查看更多 8个回答 . 2人已关注
请问,这是什么类型的计量泵? 这是我们装置的 计量泵 ,请问这是什么类型的计量泵 查看更多 9个回答 . 1人已关注
我国加气混凝土设备行业在高端产品中还需加强? 严重同意你的观点。有什么技术方面的资料或经验吗?查看更多 0个回答 . 4人已关注
吨焦耗煤怎么算? 计划 本月生产 焦炭 (标焦5%水分)80000吨,计划消耗原料煤(8%水分)105000吨,计划120炉/天,吨焦耗煤是多少,每炉平均装煤多少吨,每炉产焦多少吨,咋算 查看更多 4个回答 . 3人已关注
求油品商业库操作与数质量管理资料 拜谢!? hongchao1016@126.com 希望有能力的前辈指教! 查看更多 1个回答 . 5人已关注
丙类厂房与主干道的关系? 丙类厂房和厂区主要干道的距离为多少?查看更多 3个回答 . 3人已关注
一道题求解? 1-5 在年生产1500 t 乙苯 脱氢制取苯 乙烯 装置中,加入水蒸气量为2.6 kg水蒸气/kg苯乙烯,进入温度650℃下乙苯转化率为44.4%。苯乙烯收率为40%,其余副产为苯3%、 甲苯 5%、焦炭2%。装置年工作日为300天,已知原料乙苯的纯度为98%(质量百分数),其余为甲苯。则反应后气体的产生总量为( )。 A.8.62 kg B.8.35 kg C.8.53 kg D .7.676 k 该题如何求解,题中说的其余副产苯3%,甲苯5%,焦炭2%,以什么为基准 查看更多 6个回答 . 4人已关注
cuptower填料塔? 为什么cup Tower 规整填料 每米理论级数都是0.9呢,没办法修改 查看更多 1个回答 . 3人已关注
CAD 制图时画在图框界限内外的线不同问题? 大家见过这种现象吗,同一个图层画线,为什么画在图框内和图框外的不同。 查看更多 3个回答 . 3人已关注
简介
职业:上海宝钢气体有限公司 - 给排水工程师
学校:湖北黄石机电职业技术学院 - 自动化
地区:辽宁省
个人简介:给青年人最好的忠告是让他们谦逊谨慎,孝敬父母,爱戴亲友。查看更多
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