split-second lever双: two; twin; both; dual秒针: second hand杆: shaft; rod; bar双秒针杆簧: split-second lever spring双秒针杆座: split-second lever 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:双秒针杆,即可在微信中查询翻译