在某些场合下，使用脉冲电流还可以减少氢的析出、提高阴极电流效率，从而减少针孔、条纹和氢脆等。
In some cases, the use of pulse current still can reduce the lumber, improve the hydrogen cathodic current efficiency, thus reduce pinhole, striped and hydrogen brittleness, etc.
在一齿啮合的情况下推导了座椅调角器效率计算公式，分析出摆线针轮少齿啮合时啮合位置对效率的影响规律。
The dissertation gave the calculating method of efficiency when one teeth engage, and analyzed what influence the engaging position have to the efficiency.
从而可以分析出影响锅炉效率的因素。
Therefore it can analyses the factors influencing boiler efficiency.
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