... hand-operated control || 手动控制 hand-operated device || 手动装置 hand-operated electric drill || 手动电钻 ...
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Hand-operated gear of catching device 防坠器手动开动机构
hand-operated device
手动设备
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Jack: in practical mechanics, portable hand-operated device for raising heavy weights through short distances, exerting great pressures, or holding assembled work firmly in position.
千斤顶:在应用力学中,指携带方便、以手操作的装置,可将重物稍微抬高,能施加巨大压力,或将装配好的对象牢固地支撑在原地。
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