When motor carries 30% rated load, the system efficiency may raise about9%.

当电机运行于30%额定负载时，可提高效率9%左右。

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It's not necessary to check all the processes in system, the safety check scope is narrowed, the system efficiency is increased.

不需要对系统中所有进程进行检查，缩小了安全检查范围，提高了系统效率。

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The system has good performance of variable polarity output, they also have a hardware circuit structure is simple, low cost, the system efficiency.

该系统在具有良好的变极性输出性能的同时，又具有硬件电路结构简单、成本低、系统效率高等优点。

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The railway companies complain that only 3% of crashes are caused by the sort of human error that PTC is designed to avert and that claims that the system will improve efficiency on the network are unfounded.

ECONOMIST: American railways

He maintained that costs would come down by improving the quality of care and the overall efficiency of the system.

NPR: Obama Presses Anew For Health Care Overhaul

Voting lines seemed considerably lighter than in the October election that Chavez won, when more than 80 percent of the electorate turned out, although government officials said it was due to the improved efficiency of the system.

NPR: Tensions Up In Venezuela After Polls Close