2) drainage first then digging
先抽后掘
3) pickup before detection
先抽取后检测
1.
For the detection problem caused by the point target broken up into a range-distributed target in the wideband millimeter -wave stepped-frequency radar system,an accumulation detection algorithm based on the processing mode of pickup before detection is proposed.
针对宽带毫米波频率步进雷达体制下,点目标分裂成距离扩展目标所带来的检测问题,提出了先抽取后检测处理模式下的积累检测算法。
4) hazard of lotteries
先掷后抽; 孤注一掷
5) drainage
[英]['dreɪnɪdʒ] [美]['drenɪdʒ]
抽采
1.
The Discussion About Gas Drainage From The Work Face by Surface L-borehole
地面L型钻孔抽采工作面瓦斯探讨
2.
, the CMM drainage technologies with the displacement and depressurization of mining coal rock, involving coal seam roof, depressurization and enhanced permeability of protective coal seam, and mining influence zone of surface drilling drainage, and the intensified CMM drainage technologi.
应用数值模拟、相似材料试验、工业性试验等方法,研究了开采煤层顶板煤层气抽采技术、开采保护层卸压增透抽采煤层气技术、地面钻井抽采采动影响区域煤层气技术等采动煤岩移动卸压抽采煤层气技术,以及原始煤层强化抽采煤层气技术的关键参数,全面考察了现场应用效果。
3.
Currently, in order to control gas and enhance CMM recovery, various methods are adopted in Jixi Coal Mining Area such as upper roadway CMM drainage of low-permeability coal seams, upper near-horizontal hole drilling, coal seam plus-angle hole drilling, and roof large-diameter horizontal hole drilling, with satisfactory drainage results.
目前矿区为治理瓦斯,加大煤层气抽采,采用低透气性煤层的高位巷道抽采、高位钻场近水平钻孔、煤层钻场仰角钻孔抽采、顶板大直径水平钻孔等抽采方法,取得了良好的抽采效果。
6) extraction
[英][ɪk'strækʃn] [美][ɪk'strækʃən]
抽采
1.
Authors of the paper have introduced the basic principle of in-seam gas release and movement, set forth the distribution of stress and fractures in longwall face, analyzed factors affecting gas extraction efficiency and drawn a comparison of gas extraction between two different mining methods in UK coal mines.
本文介绍了煤层中瓦斯释放和运移的基本原理,阐述了长壁采煤工作面的应力和裂隙分布,分析了影响瓦斯抽采效率的因素,并对英国矿井两种不同开采方式下的瓦斯抽采进行了比较。
2.
Hence,strata control theory can be used in gas extraction and control of coal and gas outburst.
因此,可以利用岩层控制理论指导瓦斯抽采和预防煤与瓦斯突出的发生。
补充资料：抽抽趔趔
1.犹言别别扭扭。
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