冲砂
_
cut; cuts; cuts and washed; wash
chōng shā
sand cut （铸造缺陷）; clamp off; sand wash; sand washovercut in sand; sand cut; sand removal; sand wash; sand washing; sand washover; washing sand out
в русских словах:
промывка песчаных пробок
清洗砂堵, 油井冲砂