电离层是指含有带电物质的空间区域.The ionosphere is that region of space contatining electrically charged species.其上限由电离层的状态而决定.Its upper limit is determined by the conditions in the ionosphere.火箭和人造卫星能够到达电离层以上极远的地方.Rockets and artificia...
The critics immediately homed in on the group's newly-elected members.批评家马上将矛头对准该组织新选出的成员。Plane F103 has homed in on the radio beacon.F103号飞机已按照无线电信号飞回基地了。I wonder why you're homed by the police.我想知道你为什么让警察送你回家...
本文叙述了陶瓷泥浆成形用五水偏硅酸钠制造工艺和影响因素,简要介绍了其在陶瓷行业中的应用.This paper describes the preparation technology and influential factors to Metasilicate pentahydrate for ceramic slip casting.在五水四氯化锡存在下,由氯乙酸和正丁醇合成氯乙酸正丁酯.Synthesis of n - butyl...