Management mechanism is essentially the internal contact management system, function and operating principle.

管理机制本质上是管理系统的内在联系 、 功能及运行原理.

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Dongping gold deposit occurs in the internal contact belt between Shuiquangou alkali mixtite and old layers.

东坪金矿床赋存于水泉沟碱性杂岩体与老地层的内接触带上.

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