15399| 37
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滾珠絲杠如何自鎖,? |
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點(diǎn)評
螺母不轉(zhuǎn),,但螺桿會轉(zhuǎn)的啊
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點(diǎn)評
不能
帶斷電抱閘的電機(jī)斷電后電機(jī)軸用手能輕松轉(zhuǎn)動(dòng)么,?
這個(gè)比較好
正解
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點(diǎn)評
滾珠絲杠啊,,老大
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