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家用缝纫机踏板机
A、曲柄摇杆
B、双曲柄
C、双摇杆
D、曲柄泪块
时间:2021-09-01 16:37
关键词:
西安交通大学
机械设计基础
答案解析
A
相关问题
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
缝纫机的脚踏板机构是以( )为主动件的曲柄摇杆机构
家用缝纫机踏板机
最新问题
缝纫机的踏板机构是以___________为主动件的曲柄摇杆机构。
家用缝纫机针细线粗,针线不匹配会产生()故障。
()的机针外行于家用平缝纫机机针不同。
缝纫机的踏板机构属于()机构。
最高缝纫速度是缝纫机在正常缝纫条件下,能承受的()。
缝纫机在缝制中()部分不要接触或堆放物体,否则会发生事故及损坏缝纫机。
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
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