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- It is indispensability of overburden failure law for mining under buildings, water bodies and railways, especially mining under water bodies. 覆岩破坏规律探测是“三下”采煤,尤其是水体下采煤不可缺少的部分。
- This article introduced applications,observation and research's actuality and developing trend of fully mechanized top coal caving mining under water. 介绍放顶煤开采技术在水体下采煤领域中的应用情况、观测研究现状及其发展趋势。
- When mining under water, the height of the water suture zone in the goaf's overlying strata has direct effect on the safety of the production in mines. 为解决进行水下开采时,采空区上覆岩层导水裂缝带的发育高度直接影响煤矿安全生产问题。
- Under water, famine; under snow, bread. [谚]洪水造饥馑，瑞雪兆丰年。
- Several fields are under water after the heavy rain. 大雨过後有几片耕地被淹。
- Underground pressure emerges and roof management technology with mining under water 顶水开采矿压显现与顶板管理技术
- Able to set and harden under water, as Portland cement. 在水中变硬的能在水下定型并变硬的，如波特兰水泥
- Most amphibians live near or under water. 大部分的两栖动物住在靠近水边或水底。
- The fields were under water after the heavy rain. 大雨后田野为水所淹。
- The boy wanted to duck under water. 这个男孩想潜入水中。
- Ground building is wrecked by ground coal mining under village. 村庄下压煤开采,造成地面房屋破坏。
- I will time when you stay under water. 我来计你呆在水下的时间。
- Ground building is wrecked by compressed coal mining under village. 村庄下压煤开采,造成地面房屋破坏。
- It will take root in the mud under water. 在水底的淤泥中扎根生长。
- Under water, famine, under snow, bread. 洪水造饥馑，瑞雪兆丰年。
- He learns to breathe out under water. 他学习在水下吐气。
- The boy wanted to duck under water . 这个男孩想潜入水中。
- Coastlines will disappear under water. 海岸线将消失在海水之下。
- What about structures that are partly under water? 部分结构在水下的建筑怎么说?
- How Do Frogs Breathe Under Water? 青蛙在水下呼吸的秘密是什么?
