A light pointer is often useful with a slide projector.光指示器经常与幻灯片放映机一起使用....a 35-millimetre slide projector.35毫米的幻灯机You gave me back the projector.你将幻灯机还给我了。Ability to use Callipers, Micrometers , Gauges, Profile Project...
You gave me back the projector.你将幻灯机还给我了。A light pointer is often useful with a slide projector.光指示器经常与幻灯片放映机一起使用.There is a new projector in my office.我的办公室里有一架新的幻灯机....
Variation of helices based on dihedral angels and residue composition.不同的螺旋是依据二平面夹角与残基组成来决定.This is caused by the dihedral effect of the wings ( roll due to yaw ).这是由二面角的翅膀效果 ( 滚动由于偏航 )....
The birds are chirping merrily.鸟儿在欢快地鸣叫着.The birds,chirping relentlessly,woke us up at daybreak.破晓时鸟儿不断吱吱地叫,把我们吵醒了。Today, her chirping enthusiasms did not irritate Lily.今天她在丽莉耳旁叽叽喳喳说的那些热情话并没惹丽莉发火.The birds are chirping.小...
同性的电荷互相排斥.Two like electric charges repel each other.我们时常把电荷的流动比喻为水的流动.We often compare the flow of electrical charges to the flow of water.这是因为唱片和麦片会有相反的电荷.This is because the record and the cereal have opposite charges...