本文考虑了嵌镶晶体中经各级衍射的X射线的偏极化状态的变化，对次级消光效应作了较严密的处理。

Account is taken of the change in the state of polarization of multiply diffracted X-rays in Mosaic crystals, and a more rigorous treatment of secondary extinction is given.

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这些次级放射线的强度跟原始x射线相比较弱，而且其中的一部分可能留在了那种物质中。

The intensity of the secondary radiations is weak compared with the intensity of the primary X-ray beam, and some of it, too, may not escape from the material.

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