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。
The electron back bombardment phenomenon in high accelerating gradient standing wave linear accelerators has been analysed in comparison with that in magnetrons and microwave thermionic guns.
高梯度驻波加速管常伴有电子反轰现象，引起电子枪阴极过热及发射不稳定。
"I don't think I will go back until complete peace and security comes," said one elder, who said he had heard his house had collapsed under bombardment.
直到真正的彻彻底底的和平和安全来临，我才回去。“一位长老说，他说他听说他家房子在一次炮击中倒塌了。”
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