He insists cancelling this football match of.他坚持取消这场足球赛.Sound - cancelling works by analysing any unwanted frequencies and then producing counteracting ones.通过分析所有不需要的声音频率,然后制造相应的部分替代,这样噪声就消除了.Prohibition on cancelling t...
目的探讨脐静脉插管术在早产儿中的应用效果.Objective To explore the effect of umbilical vein catheterization on premature infants.实验组以带管芯的气管导管行盲探经鼻气管插管术,对照组则不带管芯.Objective To investigate the feasibility of transnasal tracheal intubation with ...
A large proportion of the fluorine is vaporized during the concentration process.在浓缩过程中大部份氟蒸出.The fluorine does not accumulate indefinitely in the water.氟不会在水里无限制地积累.If the fluorine content is high, it may increase plant...