泵的抽气速率与气体的性质有关.Lashing velocity of pump is concerned with nature of air.现在已经采用了低温吸附技术和吸气离子泵的近代电子抽气设备.Recent electronic means of pumping using low temperature sorption techniques and getter - ion pumps have been introduce...
Has been shown to improve the performance of other shoe components , such as air bladders.可以提高其他鞋材例如气囊 、 鞋底的功能.Any of certain rock weeds, especially the widely distributedFucus vesiculosus, having forked, brownish - gree...
I found out he'd been watching pornographic videos.我发现他一直在看黄色录像。Lots of dirty old men stood around looking at pornographic magazines.许多老色鬼站在那里看色情杂志。Pornographic literature and art corrupt the minds of young people.色...
The poem, which appeared in 1890, is an exaltation of married love.写于1890年的这首诗是对婚姻爱情的高度颂扬。The city was swept up in the mood of exaltation.整座城市处处洋溢着欢欣鼓舞的气氛。the exaltation of emotion above logical reasoning把情感提高到逻辑推理之上...