?手动开关

... 手动脚踏印刷机hand-operated foot press 手动开关hand-operated switch 手动切纸机hand-operated guillotine ...

?手动操作开关

... hand wheel switch 手轮开关 hand-operated switch 手动操作开关; 手动开关 hand-operated switch machine 手摇转辙器 ...