她不语，从她脸上掠过的一丝表情可知她是认得的。An expression of dumb recognition wiggled across her features.当气体中的自由电子被掠过的离子加速时,将发出辐射脉冲.Pulses of radiation are emitted when free electrons in the gas are accelerated by passing ions.建构一动态绘图:展示星状线...
总结了目前国内外提出的多种 防 冰除冰技术及方法.Multifold techniques and methods of anti - icing and deicing are summarized.混凝土, 盐 ( 除冰剂 ) 的渗透, 和不可逆转的损失,混凝土的抗拉强度.Concrete, salt ( deicing agent ) penetration, and irreversible loss of concrete t...
根式增压机通常都很大,并安装在引擎的顶部.Roots superchargers are usually large and sit on top of the engine.下一章, 我们将了解机械增压机对你汽车的好处.Next, we'll learn about the advantages of supercharging your car.涡轮增压机连接到引擎的排气管.The turbocharger is bolt...
细胞的这种向里推进标志着原肠胚形成的开始.This pushing - in of cells marks the start of gastrulation.外胚层囊胚的外层,在原肠胚形成之后生后外胚层组织.The outer layer of a blastula that gives rise to the ectoderm after gastrulation....