吸气剂通常是以块状或沉积新鲜薄膜形式存在的金属或合金.Getter is usually massive or thin - film deposition in the form of fresh metal or alloy.赛斯吸气剂(南京)有限公司生产电视机和监视器内彩色显象管所用的吸气剂.SGN manufactures barium getters which are used in color television and...
Nicky was rushed to hospital with concussion...尼基因脑震荡被火速送往医院。She fell off a horse and suffered a concussion.她从马上摔下来，造成了脑震荡。He was carried off the field with slight concussion.他因轻微脑震荡给抬离了现场.She suffers from brain concussi...
The optimum design method of involute internal gear slotting cutter is introduced.介绍了渐开线直齿内齿轮插齿刀的优化设计方法.The involute progression of hallucination is strange.幻觉的复杂的发展过程很奇特.This paper introduces calculation and measurement...