1·This paper expounds the design of processing techniques before hole-boring on the cylinder of upright post and hoisting jack used in the hydraulic support.
阐述了液压支架所用立柱、千斤顶的缸筒在上深孔钻镗床进行镗孔、滚压之前必须进行的加工工艺的设计。
2·In foundation excavating, upright post piles and engineering piles form a long -short pile composite foundation.
在基坑工程中，立柱桩和工程桩形成了长短桩复合桩基础。
3·Since when the shed frame is used, the inner side of the shed does not need upright post to support, and look particularly spacious, bright and sunny.
由于本棚架使用中，棚内不需要立柱支撑，棚内显得特别宽敞、明亮、阳光充足，非常有利于蔬菜的生长。