Therefore possessing the fine "Data Protection System" and "Data Protection Scheme" can fall to the minimum level with the loss of disaster.

因此拥有好的“数据保护系统”和“数据保护方案”，可以将灾难的损失减少到最低程度。

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In this paper the reasons for the ground pressure appearance of 690 level in Tongkuangyu mine are analysed. It is hoped that gives reference for ground disaster protection.

本文对铜矿峪矿690中段地压显现的原因进行分析，希望给地压灾害预防提供参考。

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