| 1. | Thickness measurement of borided layer and nistrided layer
渗硼层与渗氮层深度的测定 |
| 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. | Effect of granular bainite in 38crmoala steel on microstructure and property of nitrided case
钢中粒状贝氏体对渗氮层组织和性能的影响 |
| 4. | 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 |
| 5. | Determination of nitrided case depth and metallographic microstructure examination for steel iron parts
钢铁零件渗氮层深度测定和金相组织检验 |
| 6. | The finished part shall have a nitride case depth that does not exihibit porosity that extends deeper than the outer half of the nitride case depth
成品件外表面渗氮，只允许在渗氮层的靠外表面的渗层一半深度存在缩孔。 |
| 7. | The thesis focuses on the manufacture practice and the characteristic of ionic nitriding . the emphasis is placed on the research of plasma nitriding principle , nitriding technics and operation , test on the microstructure and performance of the nitrification layer
该课题着力于生产实践，围绕离子氮化技术特点，注重理论联系实践，介绍了等离子渗氮原理、渗氮工艺和操作、离子渗氮层组织性能的检测。 |
| 8. | Series hv / hvs vickers hardness tester , that is composed of precision mechanism , optical system and electric technology , is used to measure vickers hardness of either metallic materials or non - metallic materials
Hvs系列维氏硬度计是由精密机械，光学系统和先进技术萃合而成的材料硬度测定仪器，用于测定黑色金属、硬度合金、有色金属、表面渗氮层、氮化或非金属材料的维氏硬度，可用于各行各业的金属材料、大专院校等。 |
| 9. | Series hv / hvs vickers hardness tester , that is composed of precision mechanism , optical system and electric technology , is used to measure vickers hardness of either metallic materials or non - metallic materials
Hvs系列数字维氏硬度计是由精密机械，光学系统和先进技术萃合而成的材料硬度测定仪器，用于测定黑色金属、硬度合金、有色金属、表面渗氮层、氮化或非金属材料的维氏硬度，可用于各行各业的金属材料、大专院校等。 |
