Evolutional rule of wear trace wavelength and wave hollow from calculation of boundary layer parameter are deduced. A new thread of researches in erosion wear is provided.
通过对边界层参数的计算推论磨痕波长和波深演变规律，提出了冲蚀磨损机理新的研究思路。
When producing gray iron, it is possible by adding trace antimony to prevent quality fluctuation of molten iron and increase tensile strength and wear resistance.
在生产灰铸铁时，加入微量锑可防止铁液质量波动，提高抗拉强度和耐磨性。
Crack nucleation and propagation in wear-resistant bainite ductile cast iron were investigated by press trace method and SEM.
采用压痕法及扫描电镜观察，研究了抗磨贝氏体球铁中裂纹的形核与扩展。
Remove paint, sealing layer (protection layer), resin emulsion cement (wear - resisting flooring), protruding part, rain trace, trowel mark, rough surface, uneven joint etc.
去除油漆、密封层(保护层)、胶脂水泥(耐磨地坪)、高出部分、雨迹、镘刀痕、粗糙表面、不平接缝等。
Remove paint, sealing layer ( protection layer ), resin emulsion cement ( wear - resisting flooring ), protruding part, rain trace, trowel mark, rough surface, uneven joint etc.
去除油漆、密封层（保护层） 、胶脂水泥（耐磨地坪） 、高出部分、雨迹、镘刀痕、粗糙表面、不平接缝等。
Remove paint, sealing layer ( protection layer ), resin emulsion cement ( wear - resisting flooring ), protruding part, rain trace, trowel mark, rough surface, uneven joint etc.
去除油漆、密封层（保护层） 、胶脂水泥（耐磨地坪） 、高出部分、雨迹、镘刀痕、粗糙表面、不平接缝等。
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