18314| 23
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(求助)軸承外圈緊配合,內(nèi)圈松配合的工作原理是什么? |
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點(diǎn)評(píng)
通俗,易懂
評(píng)分
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點(diǎn)評(píng)
一定
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點(diǎn)評(píng)
很到位!
評(píng)分
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