在薄煤层工作面中使用单体液压支柱，在支护强度、初撑力、可缩量、安全保障及操作人员安全上，都优于其它单体支护材料。

Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.

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所有的脚手架支柱、支架或上部构件都必须垂直并牢固拉撑，以防摆动和位移。

All poles, legs, or uprights of scaffolds shall be plumb and rigidly braced to prevent swaying and displacement.

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柱子，支柱细长、独撑的垂直支撑物；柱子。

A slender, freestanding, vertical support; a column.

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柱子，支柱细长、独撑的垂直支撑物；柱子。

A slender, freestanding, vertical support; a column.

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