1、 The results show that the parameters have great effect on microstructure and microhardness of the coatings.
结果表明,工艺参数对冶金层显微组织及显微硬度有很大的影响.
来源:互联网
2、 The frequency induction hardening can't raise the surface microhardness of the cold precision forging spur gear.
高频感应淬火不能达到硬化冷精锻直齿圆柱齿轮齿面的目的.
来源:互联网
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