老师的办公桌上有一盆花, 给它起名叫 “ 紫草花 ”.The teacher's desk with a potted plant, since it called'shikonin spent. "目的: 建立烧伤膏中左旋紫草素的质量控制方法.OBJECTIVE : To establish a quality control method for the burn ointment.目的研究紫草油膏的化学成分,探...
Molecular sieving effect of the ACF based PAN was found during adsorption.在吸附时,PAN基ACF呈现出明显的分子筛效应.She is sieving the rice in order to sieve out the stones.她正在把米过筛,好把石头筛出.By preassigned credibility and precision, effectiv...
These are indispensable conditions for consolidating the co - operatives and ensuring increased production.这是巩固 合作社 和保证增产的几个必不可少的条件.Naturally the CIA wants to protect its operatives.美国中央情报局当然想保护其特工。In point of fact, most...