mining-district design

例句：

1. 1. The mining district design is crucialfor the safe operation of the mine.
   矿区设计对于矿井的安全运行至关重要。
2. 2. Theengineers worked tirelessly to ensure thatthe mining district design met all safety standards.
   工程师们不懈努力，确保矿区设计符合所有安全标准。
3. 3. The new mining districtdesign has significantly improved the efficiency of themining operations.
   新的矿区设计显著提高了采矿作业的效率。