()类电能计量装置宜采用主、副表计量方式,副表的规格、准确度等级应与主表相同
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争议处理中,中国银联争议处理委员会办公室在收到裁判申请之日起()内,对申请的有效性进行裁定。
A. 5个自然日
B. 7个自然日
C. 7个工作日
D. 5个工作日
Heavy fuel oils generally have an upper average ash content of 0~1% by weight.Which of the following conditions could be expected if the ash content increase above this amount?()
A. Glazing of the cylinder liners
B. Increase valve wear
C. Excessive oil pumping
D. Increase fuel consumptio
起动机电缆线长度应尽可能短些。
A. 正确
B. 错误