冬天来临，大部分关口均已关闭。Most of the passes have been closed with the onset of winter.向导慢慢地通过狭隘的关口.The guide slowly led through the pass's jaws.部队只得排成单列通过关口.The troops had to defile through the pass....
It is therefore possible to formulate the chain transfer with ethylbenzene as follows.所以可以用下式来表示乙苯链转移.The effects of temperature change a biofilter for treating ethylbenzene.主要考察温度变化对生物过滤塔净化含乙苯废气效果的影响.Catalytic dehydroge...
A police helicopter hovered above, floodlighting the area.警方的直升机在上空盘旋，照亮了整片地区。Projector designed for floodlighting, usually capable of being pointed in any direction and of weatherproof construction.为泛光照明设计的投光系统, 一般可以投射任...