Effect of microelement on the microstructure and wear resistance property of special brass have been investigated by SEM, abrasionmachine 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。
2
There is some of the fuzzy on the defining standard of failure because the abrasion failure of machine facility is a consecutive and gradually failure.
由于机械设备的磨损失效是一种连续的渐发性失效，因此在判别失效准则上存在着模糊性。
3
This dryer machine realizes zero-horizontal thrust, which greatly reduces the abrasion of the riding wheel and the catch wheel and makes the rotation of the cylinder stable and reliable.