求翻译：。本实验从该地区分离筛选能够产胞外乳糖酶耐冷细菌，并对该菌株及乳糖酶做了以下研究：。本实验从该地区分离筛选能够产胞外乳糖酶耐冷细菌，并对该菌株及乳糖酶做了以下研究：是什么意思？

. In this study, was isolated from the area can yield extracellular lactase-resistant bacteria in cold, and the strains and lactase do the following: This experiment was isolated from the area can yield extracellular lactase cold tolerance of bacteria, and the strains and lactase do the following:

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。 The experiment from the isolation of the region to extracellular cold tolerance of lactase-producing bacteria and study on the strain and lactase to do the following:. The experiment from the isolation of the region to extracellular cold tolerance of lactase-producing bacteria and study on the str

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