樓主: 水水5
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紫銅比黃銅,對(duì)于鋼的摩擦系數(shù),更大嗎? |
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點(diǎn)評(píng)
優(yōu)秀
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點(diǎn)評(píng)
氣動(dòng)柔爪應(yīng)該就是這個(gè)原理!
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