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遇到管事兒的,也談出路問題,出路在哪里,大家談?wù)劊?/span> |
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點(diǎn)評(píng)
一種是熱強(qiáng)度就低,再是抗熱裂性能不好,有些是抗‘熱振性能’差,要分別對(duì)待,
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