Electric power network when transportation electrical energy produces the electrical energy loses the direct influence electric power the use efficiency and the economic efficiency.
电力网在输送电能时产生的电能损耗直接影响电力的使用效率和经济效益。
The paper discusses the reasons why the welded test sample loses its efficiency and suggests how to reduce possibilities of such failure.
本文分析了薄焊接试板弯曲试样失效的原因，并对减少失效的可能性作出了阐述。
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