2748| 3
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請(qǐng)教懸臂式起吊的配重計(jì)算方法 |
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點(diǎn)評(píng)
好的,我去找一下這本書
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點(diǎn)評(píng)
顯示重心位置后算出來配重過大,,感覺不太對(duì)
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點(diǎn)評(píng)
是用這么算的,,就是不敢確定
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