Effect of microelement on the microstructure and wear resistance property of special brass have been investigated by SEM, abrasion machine etc.
利用电子探针、磨损试验机等试验手段,研究了微量元素对特殊黄铜的组织和耐磨性能的影响。
At present, ac servo control system has widely applied in automation area, for example NC machine, steel rolling equipment, paper making equipment and weave machine etc.
目前,交流伺服控制系统已经广泛应用于数控机床、轧钢设备、造纸设备、纺织设备等自动化领域。
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