间接氟化法则主要介绍了一些新的含- CF_2 -的合成砌块在合成二氟亚甲基化合物中的应用。
As indirect method, the use of new CF2 - containing building blocks in the synthesis of CF2 - containing compounds has been summarized.
单谱线多元件透镜可以有不同的外形和材料，有玻璃的，二氧化硅的，蓝宝石的和钙氟化合物的。
Singlet and multielement lenses are available in a wide variety of configurations and materials, including glass, fused silica, sapphire, and calcium fluoride.
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