A device for converting heterogeneous beam of radiation to homogeneous beam by absorption or refraction of unwanted components.
利用吸收或折射掉不需要的成分，把非单色光束变成单色光束的装置。
Degenerate results for the special case of an isotropic homogeneous elastic beam are coincided well with the existing analytical solutions.
该解退化到各向同性均匀弹性情况时与已有的理论解相一致。
This technology realizes integral tension and relaxation to ensure the homogeneous deformation of steel cable, so that the construction speed is enhanced and the quality of beam end is ensured.
阐述了桥梁板的施工工艺，该工艺实现了整体张拉、整体放张，使钢绞线逐根受力均匀，施工速度快，能保证梁端的质量。
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