求翻译：虽然区段煤柱留设尺寸的问题前人做了诸多研究，并取得一定的研究成果，但针对具体条件下大采高综采工作面合理区段煤柱留设尺寸进行研究，无疑具有一定的理论意义和实用价值。是什么意思？

Although the problem of coal pillar size predecessors did a lot of research, and achieved certain results, but with large mining height fully-mechanized face under specific conditions study on rational coal pillar size, undoubtedly has a certain amount of theoretical and practical value.

Although the district coal paragraph Martin stay and set up dimensions of the problem had been done much research, with a reasonable degree of research results under specific conditions, but in a highly comprehensive mining coal pillars thinly reasonable zone stay and set up a study size, there is n

Although the sector coal column kept the question predecessor who supposed the size to do many research, and obtained certain research results, but picked Gao Zongcai in view of the concrete term under the working surface reasonable sector coal column to remain greatly supposes the size to conduct t

Although the problem of coal pillar size predecessors did a lot of research, and achieved certain results, but with large mining height fully-mechanized face under specific conditions study on rational coal pillar size, undoubtedly has a certain amount of theoretical and practical value.

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