... 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
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。
This shutter device for fading a picture can be operated by hand.
这个使画面惭入的遮板装置可以用手操作。
Automatic feed is realized, the auxiliary device of the high-efficiency electric iron can be operated by one hand and the other hand can freely catch a device to be soldered.
实现自动送料，可以实现一手操作高效电烙铁的辅助装置，另一只手任意摆弄扶持被焊器件。
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