氡和钍射气的子体易被气溶胶吸附.The daughter nuclides of radon and thoron tend to become attached.在描述气溶胶时人们经常离题.When writing about aerosol one is continually invited to digress.氯氟甲烷主要使用在气溶胶喷雾罐和作为冷冻剂.The chlorofluoromethanes are used pri...
Rebel sources have so far reacted cautiously to the threat.到目前为止，反叛分子面对威胁的反应非常谨慎。She climbed the staircase cautiously, holding fast to the rail.她紧紧地抓着栏杆，小心翼翼地爬楼梯。David moved cautiously forward and looked over the edge.戴维...
The company manufactures a range of innovative light-weight cycles.这家公司生产一系列的新型轻便自行车。Cause: innovative ink anti - moisture envirogluvtm emulsive bad.原因: 油墨抗水不好的油墨乳化.For assistance, they turned to one of the city's m...
这首颂诗充分体现出了作者对母爱的赞颂之意.This eulogy poem well displays the author's praise for maternal love.颂诗是济慈最重要也是最成熟的作品.The odes are generally regarded as Keats's most important and mature works.叙事歌谣 、 颂诗等的背诵.The recitation...
This paper presents a novel production process of alumina by using isooctanol.研究了利用异辛醇和金属铝制备高纯氧化铝的工艺.The water increases the activity of the catalyst, and the isooctanol improves of the catalyst greatly.微量水分的存在对催化剂的活性有很大...