arcing ring屏蔽: shield; screen; screening环: ring; hoop环形: annular; ringlike; ring form ...消: disappear; vanish弧: arc bow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:屏蔽环, 环形消弧器,即可在微信中查询翻译