1) seam boundary
煤层境界
1.
The conclusion held that the minefield boundary was classified mainly by the resources and the seam boundary should be as the minefield boundary.
结论认为,井(矿)田境界是以划分资源为主体,应该以煤层境界作为井(矿)田境界;新方法确定的井(矿)田境界储量浪费或呆滞量比例过大,与建设节约型社会不符。
2) level of mastery
三层境界
3) segregation boundary layer
偏析境界层
4) Diffusion boundary laver
扩散境界层
5) coal pillar in minefield boundary
井(矿)田境界煤柱
6) coal bed melting limit
煤层古冲刷界线
1.
Circling coal bed melting limit in use of 2-dimension earthquake exploitation;
利用二维地震勘探圈定煤层古冲刷界线
补充资料：三层大，二层小
1.谓家庭中人口众杂，上辈之上还有上辈，下辈下面还有下辈。
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