bottom cleaning

基本解释

The purpose and the principle of the slab bottom surface cleaning technology of the Handan Steel CSP plant were introduced.
本文介绍了邯钢CSP生产线连铸坯下表面清理技术的目的、原理、效果和发展前景。
Once the aquarium is full of water, you will have to make small water changes, usually in conjunction with a bottom cleaning.
一但你缸被水填满，你要通过很吸取缸底垃圾，来进行少量的换水。
This paper conducts a systematic experimental investigation into the effect of the number and configuration of nozzles on bottom-hole cleaning and makes a detailed theoretical analysis of the results.
本文对三牙轮钻头下的喷咀数量、组合对井底净化的影响作了系统的实验研究和理论分析。

He had big bulldog clips, a masonite board, yellow Ticonderoga pencils, erasers, sketchpads, drawing paper—equipment that he stored in a grocery carton at the bottom of our bedroom closet and that my mother, when she was cleaning, wasn't permitted to disturb.
NPR: Roth Rewrites History with a 'Plot Against America'