Make the colliery ventilates ability more scientific, reasonable and practical from checking a formula in the standard through revising it.
通过修改煤矿通风能力核定标准中的一个公式，使其更加科学，合理、实用。
The results show that the case teaching can make students learn initiatively, positively, and make the learning content easy, improve learning efficiency and practical ability.
矿业工程类课程教学结果表明，案例教学可增强学习的主动性、积极性，易化学习内容，提高学习效率和工程实践能力。
The results show that the case teaching can make students learn initiatively, positively, and make the learning content easy, improve learning efficiency and practical ability.
矿业工程类课程教学结果表明，案例教学可增强学习的主动性、积极性，易化学习内容，提高学习效率和工程实践能力。
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