cleaning hole cover latch 清洁孔盖闩
cleaning hole cover 清洁孔盖
hole cleaning 清孔 ; 井底清洗 ; 井眼清洗
a cleaning hole 清理孔
bottom-hole cleaning 井底清洗 ; 净化井底
inadequate hole cleaning 井眼清洁不充分
cleaning the hole 清扫井眼
The upper side of the barrel body is provided with an observation cleaning hole; therefore, the cleaning is convenient and quick.
在筒体的上边设有观察清理孔，因而清理方便快速。
Sew or patch tears as soon as they happen. If the hole gets too big, clothing becomes cleaning rags.
哪里坏了一点就尽快的修补。要是这个洞变得太大，这个衣物就只能用作抹布了。
For this reason, the well designer generally seeks to maximize the fluid velocity (or other measure of jet energy) to achieve maximum cleaning at the bottom of the hole.
正因为这一原因，井眼设计人员一般寻求使流体速度(或其它射流能量)最大化的方法去达到最大程度地清洁井底的目的。
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