“乙烷”造句
天然气不含硫, 含甲烷88-99%,
乙烷6%和丙烷3%.
The gas , which is sulphur - free , contains 89 - 99 % methane, up to 6 % ethane, and 3 % propane.
某些苯代 ( 或多苯 ) 环氧
乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.
Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.
为了凝结氯
乙烷气体,必须使用大量的冷却水.
Great quantities of cooling water must be available for condensation of the ethylchloride.