N the secondary emission of electrons from an anode 反向发射 [electronics]
It is an anatomy problem involving the soft tissue at the back of the throat and causes the emission of sound from the airway during sleep.
这是一个解剖学的问题，和人咽喉后面一块软组织有关，并导致呼吸道发出声音。
The electron back bombardment phenomenon, which results in anomalous increase of gun current emission, has been observed in a series of our side coupled standing wave accelerating tubes.
在以半腔为首腔的边耦合驻波加速管中观察到了电子反轰现象，由于电子反轰的结果，导致电于枪发射电流非正常增长。
Highly application of GIS to urban traffic pollution management has been developed, which consisted of proscenium-GIS system, back stage-motor vehicle emission model and spatial data base.
开发了高层应用城市交通污染管理信息系统，由前台g IS系统、后台机动车排放模型、空间数据库三大部分构成。
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