2) Collection of secure blood
安全血液采集
3) safety mining
安全开采
1.
Analysis of the mining failure regularity and safety mining of the weak and weathered composite roof;
软弱风化复合顶板采动破坏规律与安全开采分析
2.
The scientized mining technology includes efficient mechanized mining,green mining,safety mining,and mining with high exploitation rate while the scientized mining refers to the one which can realize the coal mining with the highest efficiency on the precondition.
科学采矿是指实现既能最大限度地高效采出煤炭资源而又保证安全和保护环境的开采技术,科学采矿主要包括机械化高效开采、绿色开采、安全开采及提高资源回采率等方面。
3.
Those provide basis for safety mining of coal floor.
从分析煤层底板的裂隙分布出发,建立裂隙岩体的渗流模型,然后应用该模型分析得到的渗流场,采用考虑渗流软化效应的弹塑性有限元方法,分析了煤层开采过程中煤层底板破坏状态,为受煤层安全开采的提供了依据。
4) safe mining
安全开采
1.
The authors introduced the development of China's mining technology of fully-mechanized top-coal caving and clarified fully-mechanized top-coal caving as a productive and safe mining method.
对于高瓦斯煤层进行放顶煤开采,在硬顶煤和硬顶板特殊的地质条件下,必须采取特殊的措施才能安全开采。
6) Safe mining
安全回采
1.
The program of roof control for safe mining was pointed out.
文章从直接顶垮落、老顶稳定性及来压强度等方面对长壁开采的安全性进行了分析,提出了安全回采的顶板控制方案。
补充资料：安全
没有危险；不受威胁；不出事故：～操作ㄧ～地带ㄧ注意交通～。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条