anti-friction effects的意思|示意

Based on the general case of tendons used in practice, the formulas for calculating the extent owing to the anti-friction effects and the prestressing equivalent loads are derived.

针对工程实践中常用的预应力钢束布置形式，推导了预应力钢筋回缩影响长度的数值解法和预应力等效荷载的一般计算式。

The results showed that the sulphide layer could improve the anti scuffing property of steel at low speed remarkably, and showed excellent friction reducing and wear resistant effects.

结果表明：在低速条件下渗硫层可显著改善钢表面的抗擦伤性能，且具有较好的减摩耐磨作用。

Treated oil pipes can decrease the friction damage, increase charge volume and anti scaling for normal operation and enhancing the economic effects in the mine.

经过处理后的防腐油管，能减小摩阻损失，增大排量；防止结垢，保持高排量的持续生产；减少卤井事故的发生，提高企业的经济效益。