研究了光在旋转抛物面上反射与折射的一般性质，得到了相应的近轴成象公式。
The reflection and refraction of light on the rotational ellipsoid is studied, The general equations on image are obtained and disscused.
方法：利用微波分光仪测量不同含水量的生物材料对微波的透射、反射与折射情况并与微波防护布料相比较。
Methods: Measuring the reflectance and the refrangible of the fresh pigskin and comparing the result with the shelter clothing material.
通过当前图形硬件新提供的顶点纹理技术来对水面进行建模，并结合环境纹理映射技术和二维纹理映射技术实现了水面上的反射与折射等光照现象。
It took advantage of the vertex texture to model the water surface and simulated the reflection, refraction with environment texture mapping and texture mapping.
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