hand-operating mechanism手动机: hand- machine构: construct; form; compose手动传动机构: hand-actuating device调节阀手动机构: handjack assembly of control valve手动机: hand-machine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:手动机构,即可在微信中查询翻译