surface hardening 表面硬化处理 ; [材] 表面硬化 ; [机] 表面淬火 ; 表面强化
Surface Hardening Steel 低淬透性钢 ; 表面硬化钢
high-frequency surface hardening 高频表面淬火
chemical surface hardening 化学表面硬化法
induced surface hardening 感应加热表面淬火
surface hardening by laser beam 激光表面硬化
surface hardening rail 顶面硬化钢轨
surface hardening by flame heating 火焰加热表面淬火
Unfortunately, though flat tappets from China are cheap, their metallurgy is suspect-and the same goes for the quality of their machining, heat treatment and surface-hardening.
不幸的是尽管中国制造的平头挺杆物美价廉，但是其冶金技术遭到质疑，加工、热处理、表面硬化质量也遭质疑。
Under these circumstances there would always be some finite depth of surface hardening regardless of size.
在这种情况下不管零件尺寸如何，其表面总归有一定深度被硬化。
Generally used in quenched and tempered state, can also carry on the carbonitriding and high-frequency surface hardening.
一般在调质状态下使用，还可以进行碳氮共渗和高频表面淬火处理。
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