铜基合金与其他铸造合金相比,其缺点是A.布氏硬度低,仅为56-164 B.色泽不佳 C.金属的流动性差 D.化学稳定性较低 E.焊接困难

作者: tihaiku 人气: - 评论: 0
问题 铜基合金与其他铸造合金相比,其缺点是
选项 A.布氏硬度低,仅为56-164 B.色泽不佳 C.金属的流动性差 D.化学稳定性较低 E.焊接困难
答案 D
解析

相关内容:铜基,合金,铸造,缺点,布氏,硬度,56-164,色泽,金属,流动性,化学,稳定性,焊接

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