求翻译：寻找菌株降解性较高的聚乙烯醇浓度范围，测定筛选后菌株对聚乙烯醇的降解能力。利用3种自配培养基和LB培养基，MRS培养基在同等条件培养细菌。是什么意思？

Find the strain degradation of higher PVA concentration range, the determination of strain degradation of polyvinyl alcohol screening. Three kinds with medium and lb medium, the mrs medium culture of bacteria in the same conditions.

Looking for strains with higher degradability of polyethylene glycol concentrations measured after screening, the polyethylene glycol strains of degradability. Take advantage of the 3-A from the media and media LB MRS media, culture of bacteria in the same conditions.

Seeks the strain degradability high polyvinyl alcohol density scope, after determination screening the strain to the polyvinyl alcohol degeneration ability.Assembles oneself the culture medium and the LB culture medium using 3 kinds, the MRS culture medium in the same level condition culture of bact

Looking for strains of degradation of polyvinyl alcohol with high concentration range, determination of strains for degradation of polyvinyl alcohol when the filter capacity. 3 distribution media and LB medium, MRS medium equal culture bacteria.

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