The cheaper FNDs fluoresce roughly as well as those produced with an electron beam.此种廉价FND所发的荧光与用电子束生产的FND所发荧光大致相同.The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标.A high quality beam ha...
The lighthouse beam was quite distinct in the gathering dusk.灯塔的光束在渐浓的暮色中清晰可见。He directed the tiny beam of light at the roof.他把那一小束光对准了屋顶。She froze when the beam of the flashlight struck her.当手电筒的光照到她身上时她僵住了。...
你向你的秘书口述的速度有多快?How fast do you dictate to your secretary?口述的沟通空间通常与成人和交谈一起分享被鼓励.Verbal Communication Space is usually shared with adults and conversation is encouraged.转录这个部落口述的历史.Transcribe the oral history of this trib...