运用数学方法求出了一种光束平移量最小的尼科耳棱镜形式。
One kind of light beam translation quantity smallest Nicol prism form using mathematics method is presented.
通过对实验数据的分析，提出了有机玻璃棱镜导光管在体育馆照明中应用的形式。
Experimental data show that it is feasible to use the seamless prism light guide in gymnasium lighting.
不带棱镜的便携式双筒望远镜，尤其用于户外观察远处的物体。常以复数形式使用。
A portable binocular telescope without prisms used especially outdoors for viewing distant objects. Often used in the plural.
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