The chemical lab could be equipped with achromatism lucency glass.

实验室安装百叶窗帘，不要使用布质和化纤材料窗帘。

The whole world can guarantee only each time delivers identical color number cotton thread achromatism .

全球唯一能够确保每次产出的同一色号的棉线无色差。

So the theoretical basis is provided for optimizing achromatism of the rhomb-type retarder and the material selecting scope can be extended.

从而为优化菱体型相位延迟器的消色差性，扩大材料的选取范围提供理论指导。

As compared to common compensators, this compensator is convenient to operate, and has a high degree of accuracy and a good nature of achromatism .

给出一种新的三元复合式消色差补偿器，该补偿器具有调节方便、精度高、在一定波长范围内消色差性能良好等优点。