The functional system of the regional tourism has the features in structure, graduation and duality, and has the effects of whirlpool, cask, margin and intensity.

区域旅游功能系统具有结构性、层次性和二重性三大特性，具有漩涡效应、木桶效应、边际效应和强度效应四大效应。

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Objective The effect on neural functional recovery of rabbits irradiated by low intensity semiconductor laser were studied.

目的探讨低功率半导体激光对家兔神经功能恢复的影响。

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According to the Fresnel-Kirchhoff diffraction integral and nonlinear paraxial wave equation, we derive the functional relationship of the intensity of hot image and its location.

利用菲涅耳基尔霍夫衍射积分和非线性近轴波动方程，在远场近似及光学薄近似条件下，得出了位相调制产生“热像”出现的位置及强度满足的解析关系。

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