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。
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。
Higher nitrogen potential may promote formation of white layer, increase hardness and wear resistance but at the same time increase brittleness of nitriding case.
提高氮势可促使白层形成，提高渗层硬度和耐磨性，但使其脆性增高。
The relationship was studied among the formation condition of the amorphous state and the surface hardness, abrasion and corrosion, and the heat endurance of the amorphous state was tested.
研究激光形成非晶态的工艺条件与其表面硬度以及磨蚀及腐蚀的关系，并对非晶层的热稳定性进行测试。
The results showed that high cooling rate of hot rolled billet resulted in abnormal microstructure formation and high hardness, which caused shear cracking.
结果表明，原材料热轧后冷速过快，造成组织异常，硬度偏高，导致了剪切开裂。
The hardness tester is also equipped with photographic device which may take photo for all measured indentation and the metallographic formation of materials.
硬度计还可根据用户特殊要求配制摄影装置，配制后能对所测压痕和材料金相组织进行拍摄。
The product is used for exports, high density, hardness, and the formation and less deformation is ideal for foreign customers.
该产品专供出口用，密度高、硬度好、平整且不易变形，是国外客户的理想选择。
With taking advantage of the model of two-stage H+ process of interface trap formation and the role that F play in radiation hardness in gate-oxide . the above-mentioned result is deeply analyzed.
借助界面态建立的H~+两步模型和F在栅氧化层中对抗辐照加固所起的作用对上述结果进行了深入的分析。
The influences of cold water hardness, temperature, velocity on fouling formation were experimentally studied.
考察了水质硬度、温度、流速对结垢过程的影响。
The deep formation has a high degree of hardness and abrasivity; the bit type selection is difficult and the ROP is low especially under the high density mud.
深部井段地层的硬度高、研磨性强，钻头选型困难，特别是在高密度条件下机械钻速低。
Kongdian formation of Dongying Huimin Sag in Jiyang depression is a deep formation with some hardness for petroleum exploration.
济阳坳陷东营惠民凹陷孔店组基本为深层勘探程度较低的层系。
The microstructure of the oxide film morphology phase composition and micro-hardness changed, and the oxide film formation mechanism was studied by om, XRD, SEM and HV analysis methods.
用OM、XRD、SEM、HV分析研究氧化膜的微观组织形貌、相组成及显微硬度的变化，并对氧化膜生成机理进行探讨。
The microstructure of the oxide film morphology phase composition and micro-hardness changed, and the oxide film formation mechanism was studied by om, XRD, SEM and HV analysis methods.
用OM、XRD、SEM、HV分析研究氧化膜的微观组织形貌、相组成及显微硬度的变化，并对氧化膜生成机理进行探讨。
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