本文根据光线轨迹方程，讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
提出了梯度分析法，并将其与国际上通用的标准匀度指数法进行了分析和比较。
In this paper, the method of gradient was advanced and compared with the standard formation number general in the paper field.
综合了热量和水分差异的水热积指数等值线与热量梯度和水分梯度均有一定的对应性，与植被类型的对应也较好。
The isopleth of water and thermal product index not only showed better relation to thermal and water gradients but also to vegetation types.
文章对含i型裂纹的正交各向异性功能梯度材料板沿其板厚的弹性常数表达式呈指数函数变化时的应力-应变场进行分析。
In this article, the fracture analysis on mode I crack of orthotropic functionally gradient materials is studied, under which the elastic constants changed exponentially along thickness of the plate.
对弹性模量按指数函数梯度变化的算例进行了分析。
Some numerical examples are also given by assuming an exponential gradient function.
研究了指数型体积分数对功能梯度薄圆柱壳振动频率的影响。
The influence of an exponential volume fraction law on the vibration frequencies of thin functionally graded cylindrical shells was studied.
根据非局部线弹性理论研究了剪切模量为指数型的无限大功能梯度材料反平面裂纹问题。
The crack problem in an infinite mediums of functionally graded material (FGM) subjected to antiplane shear is studied by using nonlocal linear elasticity theory.
本文采用抛物型等效法研究指数型梯度折射率纤维的成像特性。
The imaging characteristics of an exponential-type GRIN fiber is studied by the method of "equivalent parabolic-type".
本文采用抛物型等效法研究指数型梯度折射率纤维的成像特性。
The imaging characteristics of an exponential-type GRIN fiber is studied by the method of "equivalent parabolic-type".
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