Raman gain coefficient is drawn from an insert valve of a Raman profile instead of triangle Raman profile approximation.
利用拟合图谱通过插值得到拉曼增益系数代替传统的将拉曼增益谱近似为三角形的方法。
On the assumption that the product of volume thermal expansivity and bulk modulus based on the thermodynamic approximation theory, a new equation is presented for volume thermal expansion coefficient.
根据热力学近似理论，在对体积热膨胀系数和体积弹性模量的乘积进行假设的基础上推导了一个体积热膨胀系数与体积和温度间的关系式。
The method of solving transport coefficient of a gas by relaxation time approximation is simpler than others.
应用驰豫时间近似法推导气体的输运系数，这种方法比其他方法要简单得多。
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