Objective To study the treatment effects of chronic dacryoadenitis and obstruction of nasolacrimal duct by inverse planting silica gel tubes with spherical end.

目的探讨逆植球头硅胶管治疗慢性泪囊炎、单纯鼻泪管堵塞的临床疗效。

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Based on the matrix optics, the propagation and transformation characteristics of Gaussian beam through a parabolic gradient-index rod with the spherical end surfaces are analyzed.

本文采用矩阵光学的方法，分析了高斯光束经球端面抛物型梯度折射率棒透镜的传播与变换特性。

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Puts forward stress wave research method when the linear charge blasting. It regarded column stress wave as cylinder stress wave, end stress wave as spherical wave.

提出了将条形药包柱部应力波当作柱面波、端部应力波当作球面波处理的应力波研究方法。

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Other facilities include a small children's library, exhibition spaces, lecture halls, a school for information sciences and a planetarium, this last being a separate, spherical structure poised at one end of the vast outside plaza like an orbiting satellite.

ECONOMIST: Runes among the ruins