The mechanism and technology of tissue engineering were introduced into the study on repairing of injured pulp and hard tissues, and regeneration of a tooth.
牙齿组织工程学，是将组织工程学的原理和技术应用于牙体牙髓损伤修复和牙齿再生的研究。
The mechanism and methods of pipeline repairing by PE pipe insert replacement technology is explained based on the properties of PE pipe, and several main in-site working technologies are introduced.
根据PE管的特性，阐述了运用PE管穿插更新技术进行管道修复的机理和方法，介绍了一些主要的现场施工技术。
In this review, the actions and mechanism of neutrophil elastase in the repairing lung injury were summarized.
本文就中性粒细胞弹力蛋白酶在肺组织损伤修复中的作用和机制进行综述。
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