To study its origin and mechanism is of great significance to production safety in mine.
研究其成因机理，对矿山安全生产具有重大的现实意义。
This paper refers to the concept of clean production and its back-ground and origin.
介绍清洁生产的概念及其产生的背景。
The spread of literature magazine and the literature production have the same origin and essence.
文学杂志的传播与文学生产同源同质。
The spread of literature magazine and the literature production have the same origin and essence.
文学杂志的传播与文学生产同源同质。
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