| 1. | This has been implications for the specification of case depth for gears .
这一情况已影响到齿轮硬层深度技术条件的确定。 |
| 2. | Method of measuring nitrided case depth for iron and steel
钢和铁渗氮层深度的测量方法 |
| 3. | Methods of measuring case depth
测量淬火硬化层深度的方法 |
| 4. | Methods of measuring case depth hardened by carburizing treatment for steel
钢的渗碳硬化层深度的测量方法 |
| 5. | Measuring case depth for steel
钢表层硬化深度测定法 |
| 6. | Effective case depth
有效硬化深度 |
| 7. | Carburized case depth
渗碳层厚度 |
| 8. | 12 when 20 ” casing depth is attained , displace hole volume with high viscosity mud
钻达20英寸套管深度时，用高粘度泥浆替满井眼。 |
| 9. | Measurement on the carburizing or nitro - caburizing harden case depth of sintering iron - based material
渗碳或碳氮共渗硬化层深度的测定 |
| 10. | Steel - iron parts - determination of nitrided case depth and metallographic examination of nitriding structure
渗氮层深度测定和金相组织检验 |
