Reducing the pace of progress on course content, and emphasis on the expansion on basic formula and the application guide are also the features of new plan.
减小课程内容的进展梯度、重视基本公式的扩展及其对应用指导也是新方案的特点。
The corresponding mathematic model has been established in accordance with the physical definition of the density and the expansion coefficient through formula derivation.
根据密度和膨胀系数的物理定义，通过公式推导，建立了相应的数学模型。
In this article, we derive complex expansion formula of spherical and cylindrical waves by comparing the stacking field of complex ray and the close-form solution in the plane spectral domain.
通过在平面波谱域中比较复射线束叠加场和标准解的方法，导出了球面波和柱面波的复射线束展开系数公式。
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