单词：magnetrons
(magnetron 的复数) n. 磁控管
[化] 磁控管
[化] 磁控管
plural of magnetron
n. a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
n. a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
单词：magnetrons 相关文章
微波炉发明源于一项最高军事机密 Many people around the world use a microwave oven every day, not knowing that a crucial part of it was once a top military secret. 世界上许多人每天都在使用微波炉,但却不了解它曾经是一
发表于:2018-12-16 / 阅读(35) / 评论(0)
VOA标准英语2016年(二月)
VOA标准英语2016年(二月)