It also gives out a variable coefficient density compensation formula used for measurement of mass flow of the low pressure saturated steam, and the features of this formula.
给出了一个用于低压饱和蒸汽质量流量测量的变系数密度补偿式和该补偿式的特色。
When mechanical energy density is variable with time in an object, the mechanical energy flow is bound to follow the transmission of mechanical energy.
物体中机械能密度随时间变化时，伴随着机械能的传递，将存在机械能流。
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