13555| 29
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求助,帶鋸床鋸條老是出現(xiàn)裂紋,用不長時(shí)間就斷了 |
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點(diǎn)評(píng)
才一百多,我們用的是五百多的,好用的很
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點(diǎn)評(píng)
必須得松開,好點(diǎn)的鋸床現(xiàn)在都是油壓張緊鋸帶的,一停機(jī)就自然松開了!
還是不明白呀,松開跟熱脹冷縮有什么聯(lián)系??
熱脹冷縮
因?yàn)闊崦浝淇s。
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