Based on the component analysis, a new calculation method for the volume factor of formation crude oil was proposed by cubic equation of state.
在组分分析的基础上，采用立方型状态方程建立了计算原油体积系数的新方法。
The displacement method, on the other hand, can be used to obtain accurately the cubic volume of any part of the tree .
另一方面，排水法可用来精确求得树木任一部分的立方材积。
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