... placing rate 铺管速度 placing sand充填砂 placing site 铺管工地 ...
双语例句
1
The term is also used in gravel packing to describe the act of placing all the sand or gravel in the annulus.
该术语同样用于砾石充填，去描述在环空内充填沙子或砾石。
2
The dynamic stress inside green sand during experimental compaction by air impact moulding can be achieved using a method of placing aluminium plate at the top of green sand.