Usage: When pouring into-cement, keepingapart cement mortar and mud and preventing cement mortar from mixing into mud for not influencing quality of well cementation.
产品说明用途:注水泥时,隔离水泥浆和泥浆,防止水泥浆中渗入泥浆影响固井质量。
2
Standing with feet shoulder-width apart and cradle baby with both arms. Keeping a straight back and repeat deep knee bends.
双脚分开与肩同宽,双臂抱着婴儿。保持背部挺直,重复深膝弯曲。
3
The reason for keeping the two businesses apart is that long-haul and short-haul operations are widely thought to require different business models.