1) through coal delaminations'bore
穿层钻孔
2) bores through rock and coal seam
上向穿层钻孔
3) through strata
穿层
4) strata-dissecting fault
穿层断裂
1.
(1) interformational detachment structures, (2) interformational fractured zones, (3) strata-dissecting faults.
研究表明,北京万庄金矿有3种类型控矿构造:(1)层间虚脱构造控矿,矿化往往发育在中元古界厚层碳酸盐岩层之间,碳酸盐岩为有利的容矿围岩,成矿具有明显的层控性;其控制的矿体规模大,矿体延深明显大于延长,为矿区内最主要的控矿构造;(2)层间破碎带构造控矿,矿化不受围岩性质限制,为矿区内分布最广泛的控矿构造,一般矿化规模较小;(3)穿层断裂构造控矿,矿体品位和厚度变化大,安山岩为围岩时矿脉窄而富金,碳酸盐岩为围岩时矿脉宽相对贫金。
5) through beds hole
穿层孔
1.
Study on improving the penetrability of coal seam with the water pressure blasting in the through beds hole;
穿层孔水压爆破法提高煤层透气性的研究
6) throughout shaft
穿层井筒
1.
The paper introduces how to extinguishing fire of throughout shafts by the comprehensive direct fire-fighting methods.
介绍采用"综合直接灭火法"处理穿层井筒自然火灾的方法、灭火实例及灭火效果。
参考词条
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