3143| 7
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升降門怎么停留在想要的位置后不下滑 |
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點(diǎn)評(píng)
或者光軸的“直線軸承”是帶阻尼的材料。
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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