1. The Si-Mn steel track plate and pin usually exist the early abrasion, one of the main reasons is the burr defect of pin hole. 硅锰钢履带板销孔存在脉纹铸造缺陷是造成履带板与履带销出现早期磨损现象的根本原因之一。
2. The experiment results showed that V could refine grain, change carbide morphology and distributed of high Cr-Mn white cast iron, and increase mechanical properties. 结果表明：在高铬锰白口铸铁中加入一定数量的钒，能细化晶粒，改善碳化物的形态和分布，提高力学性能。
3. The results showed that Nasturtium officinale contained abundant elements of Ca, Mg, Fe, Zn and Mn, and there was difference of the content of trace elements in stems and leaves. 结果表明，西洋菜中钙、镁、铁、锌、锰含量丰富，茎与叶微量元素含量存差异，这些为研究西洋菜药用及食用价值提供新的科学依据。
英英解释
n.
1. a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in mak
2. a midwestern state
