turbator带: belt; girdle; ribbon; band; ...环形: annular; ringlike; ring form ...谐振腔: cavity resonator; cavity; re ...的: 4次方是 The fourth power of 2 i ...磁控管: magnetron; permatron; turbat ...下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:带环形谐振腔的磁控管,即可在微信中查询翻译