此外，还扼要地介绍了平衡滤光片的制造方法及它的荧光效应。
The fabricating methods of balanced filters and their fluorescence effects are briefly described.
本文从平衡滤光片的原理，推导了金属片型和塑料氧化物型平衡滤光片的最佳厚度计算公式。
The precise formulas, for calculating thickness of X-ray balanced filters made from metal foils or oxide-plastic films are deduced from the principle.
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