Instead, a standard costsystem provides guidance in determining the type of cost data needed and the form in which the data should be reported.
恰恰相反,标准成本系统为需要报送的成本数据的类型和形式提供了指南。
2
Speed regulation system using cascade control method with thyristor is a low-costsystem, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.