Chemically speaking, a hydrocarbon [HC] is an elemental compound of hydrogen and carbon that occurs naturally and is found in high concentrations in crude oil. Used as a modern refrigerant, non-toxic hydrocarbons are an environmentally friendly alternative to CFC/HCFC/HFC fluorocarbons linked to oz...
一般来说,出题的顺序与在原文的展开顺序是一致的;根据印象,第一个小标题natural gas basics重点介绍了天然气的基本知识,因此缩小查找范围。找到小标题下第三段首句Natural gas consists primarily of methane and other hydrocarbon gases.其中consists of与made up of同义,primarily对应 mainly。
PROBLEM TO BE SOLVED: To obtain oil composition for a hydrocarbon gas compressor comprising a specific polyalkylene glycol derivative as a base oil, having a low solubility in a light hydrocarbon and water, capable of preventing a seizing and wearing by reducing the lowering of the viscosity and...
Is it possible to make a renewable hydrocarbon gas that could be used in the place of fossil fuel based hydrocarbons? It seems like if we produced hydrocarbons out of plant materials, and then planted enough trees, grass, etc., to remove the carbon produced form the atmosphere, we would ha...
摘要: PROBLEM TO BE SOLVED: To accurately measure the odor of exhaust gas containing NOx or SOx from a cement manufacturing facility, and to perform management with an odor index.收藏 引用 批量引用 报错 分享 文库来源 其他来源 求助全文 All the hydrocarbon tonnages in the exhaust gas wh 优质...
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Gas Production from hydrocarbon -- it is supplied in hot coke in the fluidized bed coke from coke gasification device 来自 掌桥科研 喜欢 0 阅读量: 4 申请(专利)号: NO19870003227 申请日期: 1987-08-03 公开/公告号: NO873227L 公开/公告日期: 1988-02-05 申请(专利权)人: UNITED TECHNOLOGIES ...
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A hydrocarbon chain is a molecule that consists of entirely hydrogen and carbon. They are the simplest of the organic compounds and may be a liquid, gas or solid. There are many types of hydrocarbon chains, including alkanes, alkenes, alkynes, cycloalkan
(b) We found that the pressure increases as the temperature rises, which indicates that temperature plays a significant role in the process. 哪个句子“更强”?在(a)中,使用过去时意味着你的发现只与你自己的研究有关,你不认为你的推断应该被视为公认或既定的事实,甚至不认为另一位研究人员一定会得到同...