Mechanical characteristics of four types of shield support are analyzed.
本文分析了四种型式掩护支架的力学特性。
Repetition goes on until the best structure of the flexible shield support is achieved.
如此反复，直至获得柔性掩护支架的最佳结构。
Repetition goes on until the best structure of the flexible shield support is achieved.
如此反复，直至获得柔性掩护支架的最佳结构。
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