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今天開(kāi)始又努力找工作了 |
點(diǎn)評(píng)
下部是杠桿機(jī)構(gòu),,上部滑塊機(jī)構(gòu),,復(fù)位靠彈簧,。
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點(diǎn)評(píng)
杠桿,、滑塊。自己琢磨下,,很簡(jiǎn)單的玩意,。
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