本文分析了四种型式掩护支架的力学特性。
Mechanical characteristics of four types of shield support are analyzed.
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.
介绍用掩护支架采煤代替斜切爆破采煤法的显著效益。
Obvious benefits were introduced to replace the means of chamfering demolition mining by shield support mining.
应用推荐