After blocking, severity of tissue injury in experimental group 2 was milden than in experimental group 1 (P<0. 05).

封闭后组织损伤程度实验2组明显轻于实验1组（P<0.05）。

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After blocking, severity of tissue injury in experimental group 2 was milden than in experimental group 1 (P<0. 05).

封闭后组织损伤程度实验2组明显轻于实验1组（P<0.05）。

youdao