split-second collet双: two; twin; both; dual秒针: second hand制动: braking; retardation; retain ...杆: shaft; rod; bar双秒针制动杆盖座: split-second collets cover support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:双秒针制动杆，即可在微信中查询翻译
