Since the main part of containment sump strainer is strainer-surfaced cylinder, this paper simplifies the structure from two aspects, tube structure and the influence of strainer.
因为地坑过滤器主体部分是开孔滤筒结构，所以本文对该结构进行简化，从筒型结构、开孔对筒型结构的影响这两个方面进行研究。
Artist drops paint on the surfaced of paper or canvas and leave marks to build up the density of time.
画家把油彩涂在画布上或画纸上时，所留下的印记把时间的质量建立起来。
Artist drops paint on the surfaced of paper or canvas and leave marks to build up the density of time.
画家把油彩涂在画布上或画纸上时，所留下的印记把时间的质量建立起来。
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