(IFS) ：立即支护

[22] canopy：液压支架顶梁

[23] supporting resistances：支架阻力

[24] lowered and pulled forward：降柱和拉架

[25] hydraulic advancing ram：液压推移千斤顶

[26] rigidity：刚性，刚度

[27] curved or snaked section：弯曲或蛇曲段

[28] panel development：区段的拓展

[29] cribs：木垛

[30] support density：支架密度

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