knife barkekr,knife machine是什么意思

用法例句

By alternate construction of fair-faced concrete wall,floor slab and 3 scissor-type ramps,cross arrangement of cross ramps was avoided in structure,construction joints were reduced and quality requirement of fair-faced concrete was thus ensured.

清水混凝土墙体、结构楼板与三条剪刀式设置的跃层坡道穿插施工方法,解决了结构上多条坡道交叉设置,与结构楼板、结构墙体穿插施工,减少并淡化施工缝,从而保证了清水混凝土质量要求。