Conclusion the formation of ureteral calculus probably relating to the water hardness in some areas.
结论在一些地区输尿管钙石的形成可能与水的硬度有关。
2
The effect of the pulse discharging parameters on the formation and hardness of the TiC coating was investigated.
讨论了脉冲放电工艺参数对涂层形成与涂层硬度的影响。
3
Higher nitrogen potential may promote formation of white layer, increase hardness and wear resistance but at the same time increase brittleness of nitriding case.