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。

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Front support upright, more stable.

引出前支撑立柱，更加稳定。

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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。

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Or position the bolster in front of regular pillows as extra lumbar support if you want to assume a more upright position to devour Gillian Flynn's "Gone Girl" or use your laptop.

WSJ: Bolster Cushions Win Best Supporting Rolls