3067| 9
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外徑80mm圓板,,進(jìn)行升降,,可采取什么機(jī)構(gòu),? |
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點(diǎn)評(píng)
壓電陶瓷,表示沒(méi)聽過(guò)
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點(diǎn)評(píng)
行程才4mm,,還不夠你一個(gè)牙距
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