To building net lock as an example, often appear "a key to open a lock" chaos.
以建筑网片锁具为例，经常出现“把钥匙开多把锁”的混乱局面。
Stope ground pressure control is a key issue in an open stope mining process.
采场地压控制是空场采矿法开采工艺的关键环节。
Stope ground pressure control is a key issue in an open stope mining process.
采场地压控制是空场采矿法开采工艺的关键环节。
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