Due to the complexity of mine design, the development of modern design of mine lags behind relatively.
由于矿山设计的复杂性，矿山现代设计的步伐也相对落后。
It is demanded urgently to establish a universal design criterion, speed up the development of dedicated equipment and seek more ways to refrigeration in the mine.
目前应抓紧制订统一合理的井下空调气候标准，加强配套设备的研制开发，探讨矿井空调制冷方式的多样化。
The system greatly decreases the difficulty of developing a virtual coal mine and raises the efficiency of development, provides a powerful tool for design, project decision and education.
利用此系统开发虚拟矿井极大地降低了开发难度，提高了开发效率，为设计工作者，方案决策者，从事煤矿教学，培训的教师提供了一个得力工具。
The system greatly decreases the difficulty of developing a virtual coal mine and raises the efficiency of development, provides a powerful tool for design, project decision and education.
利用此系统开发虚拟矿井极大地降低了开发难度，提高了开发效率，为设计工作者，方案决策者，从事煤矿教学，培训的教师提供了一个得力工具。
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