It can be seen in the future, power electronics converter will get higher efficiency and power density.
可以预见软开关技术的应用可使电力电子变换器具有更高的效率和更高的功率密度。
Hence by using the efficiency equations, derived in this paper, the optimum speed ratio to get higher efficiency of the screw pairs can readily be selected.
然后用本文推导的效率公式选用合理的丝杠螺母角速比，便可得到较高的效率。
Hence by using the efficiency equations, derived in this paper, the optimum speed ratio to get higher efficiency of the screw pairs can readily be selected.
然后用本文推导的效率公式选用合理的丝杠螺母角速比，便可得到较高的效率。
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