The application of the constant-contact resilient side bearings for speed increased freight cars is investigated, and a new idea of adjustment method is put forward.
对提速货车用常接触弹性旁承的使用情况进行了调查，并对其调整方法提出了一种新设想。
Adjustment through changing the blower's rational speed in order to adapt the gas blower to the change of gas amount is an efficient energy-saving method.
煤气鼓风机为适应系统煤气量的变化采用改变风机的转速来进行调节是一有效的节能方法。
The simulation results have shown that this method which combines rough and fine focus adjustment can ensure the focusing accuracy while improving the focusing speed.
仿真实验表明，这种粗精相结合的检调焦方法既能保证聚焦精度，又能提高聚焦速度。
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