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。
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。
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.
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