During blasting test of rock split in advance using Double Factors test method, the work is reduced and predigested.
在预裂爆破试验中，采用双因素试验方法，减少了试验的工作量。
In the case of double-source supply to a consumer, there are two kinds of currently prevalent calculation method for tariff regulation by power factors at site.
对于两路电源供电给同一用户的情况，目前现场通用的功率因数调整电费有两种计算方法。
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