蒸发的物质能再凝结, 形成新的粒子.Evaporated material can recondense, forming new particles.吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力.Getter - ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal.它通...
gristle in meat肉里的软骨Babies have gristle in some parts of the skull.婴儿的脑壳有些部分是软骨.I can't eat this meat it's all gristle , ie full of gristle.这肉不能吃 -- 净是软骨.a lump of gristle一块软骨...
在中高相对湿度 ( 43% ～98% ) 时, 孔容积是决定调湿性能的主要因素.At medium and high RH ( & gt ; 43 % ), the main factor is pore volume.结果表明,在通常情况下硅胶不适合作为调湿材料.The results show that the silica - gel is not suitable to a hygroscopic material in gen...
"Health Matters" is introduced by Dick Oliver on BBC World Service.英国广播公司对外广播频道的“健康动态”节目由迪克·奥利弗主持。They picked up Oliver and carried him shoulder high into the garage.他们把奥利弗抬了起来，齐肩举着进入了车库。She cried when she spoke of Olive...