1) micro-thickness mine coal face exploitation
极薄煤层开采
2) thin seam mining
薄煤层开采
1.
Summarization of thin seam mining and research on thin seam mining in Shenfu Dongsheng Coal Field;
薄煤层开采综述和神府东胜煤田薄煤层开采
2.
Present status and development of fully mechanization technology for thin seam mining;
薄煤层开采综合机械化技术现状及发展
3) extremely thin coal bed
极薄煤层
1.
Regarding the extremely thin coal bed coal and the gas prominentpossibility analysis,in formerly practiced was a blank,therefore inthe production process knew and took the degree to be insufficient.
对于极薄煤层煤与瓦斯的突出可能性分析,在以往实践中是个空白,所以在生产过程中认识和重视程度不够。
4) thin coal seam
极薄煤层
1.
In order to extend the mine life and multi-recovery of coal resources,from February 2003 to July 2008,the thin coal seams that were given up in the past were mined again in Shuangyang Coal Mine,Shuangyashan Mining Industry Group Comp.
双鸭山矿业集团公司双阳煤矿为延长矿井寿命多回收煤炭资源,自2003年2月至2008年7月先后对过去放弃的极薄煤层进行复采,取得了较好的效果。
2.
MG80/120-TBW single shearer was successfully used for the high-grade mining in thin coal seam,in Xinjian Coal Mine,in Qitaihe Mining Industry Cleaned Coal Group.
七台河矿业精煤集团新建煤矿在极薄煤层采煤中成功地使用了MGD80/120-TBW型单滚筒采煤机进行高档普采。
5) contiguous thin coal seams mining
近距离薄煤层开采
6) mining thin coal seam under mixed rock
夹石下开采薄煤层
1.
this article introduces the methods of mining thin coal seam under mixed rock and problems found as well as solutions in 14-2 level 301 panel 8116 working face, Silaogou Coal mine, Datong Coalmine Group Co.
介绍了大同煤矿集团公司四老沟矿14-2#层301盘区8116工作面夹石下开采薄煤层的方法、遇到的问题及解决办法,对类似工作面的开采提出了建议。
补充资料：“质子-电子偶极-偶极”质子弛豫增强
“质子-电子偶极-偶极”质子弛豫增强
物理学术语。原子核外层中不成对的电子质量小，但磁动性很强，可使局部磁场波动增强，促使氢质子弛豫加快，从而使T1和T2缩短，这种效应即为PEDDPRE。过渡元素和镧系元素大部分在d和f轨道有多个不成对电子，所以其离子往往具有PEDDPRE，可用来作顺磁性对比剂，如钆(Gd)。Gd在外层有7个不成对电子，具有很强的顺磁性。
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