| 释义 |
1 ?表面硬度 ... case hardening steel ==> 渗碳用钢 case hardness ==> 表面硬度 case history ==> 病历,病史,工程实例,工程事例,典型例证 ... 2 ?外表硬度 ... no test 未测试 blue print 蓝图 case hardness 外表硬度 ...
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The hardening case depth and hardness curve can be changed by adjusting heating time, heating power and cooling speed during induction hardening. 在感应淬火中，通过改变加热时间、加热功率和冷却速度可以改变淬硬层深度和硬度梯度。 - 2
Nitriding develops extreme hardness in the surface of steel. This hardness ranges from 900 to 1,100 Brinell, which is considerably higher than that obtained by ordinary case hardening. 渗氮在钢表面获得远远超出正常标准的硬度。其硬度范围为900到1,100布氏硬度，这远高于普通表面硬化所获得的硬度。 - 3
This hardness ranges from 900 to 1,100 Brinell, which is considerably higher than that obtained by ordinary case hardening. 其硬度范围为900 到1，100 布氏硬度，这远高于普通表面硬化所获得的硬度。
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