1) Erosion index
磨蚀指数
2) abrasion
磨蚀
1.
Repair and anti abrasion measures of erodible parts of middle and small scale axial flow turbine;
中小型轴流式水轮机易磨蚀部件的修复与抗磨蚀措施
2.
Mechanism of concrete pavement subjected simultaneously to freezing-thawing and abrasion action;
混凝土路面冻融-磨蚀复合作用机理研究
3.
Through performing all kinds of anti-corrosion and anti-abrasion experiments,the ways of surface oxidation process and anti-corrosion coat materials of air propeller are selected in this article according to self-protection property of the air propeller used on certain ship.
根据空气螺旋桨在某船上的自身防护特点,通过耐腐蚀、耐磨蚀等各种实验,对空气螺旋桨桨叶表面氧化处理工艺和表面防腐涂层材料进行了筛选。
3) corrosive-wear
磨蚀
1.
Experiment Study of Anticorrosive-wear about Tube and Rod Friction Pair in the Pumping Well;
抽油井管杆摩擦副耐磨蚀性能试验研究
2.
Experimental study on electrode potential and electrochemical corrosion of four kinds of ordinary materials selected under different sewage environments was discussed,in order to ascertain the influence of electrochemical corrosion on corrosive-wear of oil tube and pumping rod.
为探讨电化学腐蚀对抽油井中管杆磨蚀的影响,选取油田常用的4种管杆材料分别在不同污水环境下进行了电极电位和电偶腐蚀实验研究。
3.
Study the corrosive-wear rules of the oil tube and pumping rod in different environment can guide technologists through the selection of the suitable tube and rod materials.
研究不同油井环境下各种管杆配对材料的磨蚀规律,可以指导油田正确选择使用管杆配对材料。
4) Wear
磨蚀
1.
But for those turbines in silt-laden river, because of the wear by sediment and the interaction between the wear and cavitation, the setting height of turbine would influence the investment and safe and stable operation of the hydropower station.
用不同的安全高程和水流含沙量作为试验条件，按金属磨蚀失重率来优选最有利安装高程，是一种新的方法，这在国内外还是首次。
5) erosion
磨蚀
1.
Study on erosion-resistance of the flexible organic coating composite;
有机复合弹性涂层材料的抗磨蚀试验研究
2.
Based on data review, the corrosion and erosion of metal drilling tools in under-balanced drilling are analyzed, including affecting factors, composition and application of corrosion inhibitors.
在对文献调研的基础上 ,综述了国内外在欠平衡钻井中对金属钻具的腐蚀与磨蚀方面所做的工作 ,主要包括各种影响因素的分析、相应防腐剂的组成和应用。
3.
The analysis shows that the erosion happens in the oil refining activator slurry pump,the treatment to resisting erosion of the pump impeller,prolong efficiently the running period of this pump.
对催化剂浆料泵叶轮的磨蚀问题进行了失效分析 ,采取了一定的防护措施 ,有效延长了设备运行周
6) abrasion and cavitation
磨蚀
1.
Study on New-style Sealing Structure for Anti-abrasion and cavitation;
新型抗磨蚀密封结构的研究
2.
The water flow with silt have stronger destructive power to the abrasion and cavitation of the through-flow parts of the water turbine.
含沙水流对水轮机过流部件焊缝有很强的磨蚀破坏力,其主要原因是焊缝材料的疲劳强度很低,在相同的磨蚀强度下,焊缝材料最先被磨蚀破坏。
参考词条
补充资料：迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中，}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100，如某一地区的值越大，反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂，则: }艺材。一芝Mj、}EIM汀艺。+乏M，(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二，么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中，M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I，j为迁移偏好指数。通过计算迁移偏好指数，可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如，专业技术人员的人数所占比重，各种文化程度人数所占比重等，以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中，M为迁移人数;M，为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。