The theoretical method for calculating the absorption coefficient of the absorber is provided by analogying the acoustic field in a tube with varying cross section.
对尖劈型吸声材料用类比变截面管道的声场理论，给出了计算其吸声系数的一种方法；
It gives a definite method of penalty coefficient and contributes workable theoretical grounds to the policy decision departments for defining reasonable penalty coefficient preventing tax evasion.
具体指出罚款系数的确定方法，为税务决策部门针对偷骗税行为制定合理的罚款系数提供了可操作的理论依据。
The value of the thrust coefficient is seen to rise slightly with time, consistent with the theoretical assertion that it is a weak function of pressure.
价值的推力系数是看到略有上升随着时间的推移，与理论断言，这是一个薄弱的功能压力。
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