1331| 9
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求問(wèn)怎么自制一個(gè)推力可以達(dá)到250公斤的往復(fù)運(yùn)動(dòng)機(jī)構(gòu),? |
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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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