loop圈: circle; ring环状: cyclic annular; ringlike圈环: annular ring; cup; quoit; ring光圈环: aperture ring气圈环: anti ballooning ring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:圈环状，即可在微信中查询翻译
