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這個(gè)升降結(jié)構(gòu)用什么方式做比較好? |
點(diǎn)評(píng)
電機(jī)帶剎車,一拖二2組滾珠絲桿,用傘齒輪組換向,4導(dǎo)柱
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點(diǎn)評(píng)
為啥要上下2層,能停在任意位置不是就可以了嗎
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