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- artificial sill pillar 人工底柱
- Sublevel caving without sill pillar is used in Xishimen Iron Mine. 西石门铁矿采用无底柱分段崩落采矿法开采。
- The ores of sill pillar were removed from monkey shaft with the continuous ore shell retained. 采用废柱矿石由分层联巷溜井出矿,留连续矿壁回采工艺,获得了较为理想的经济技术效果。
- Disadvantages of sublevel caving without sill pillar lie in high ore loss and dilution as well as difficult control of ore loss and dilution. 无底柱分段崩落采矿法存在损失贫化大和损失贫化难以控制的缺点。
- The practice of improving upward mechanized entrance-filling without sill pillar in JiaoJia Gold Mine was described in this poper. 本文对焦家金矿无底柱机械化上向进路充填采矿法回采工艺的改进作了简述。
- In order to seek reasonable cut-off grade for ore drawing in subdrifting and caving without sill pillar, the relative researchers have put forward various theories and methods. 为寻求无底柱分段崩落采矿法合理的放矿截止品位,众多研究者进行了大量的研究,提出了多种理论和方法。
- The mining method which will be used at Hebei Fanshan Phosphorus Mine is a new one combining the sublevel caving mining method with sill pillar and sublevel caving mining method without sill pillar. 河北矾山磷矿采矿方法为有底柱和无底柱采矿法相结合的一种新的采矿法,其采场结构参数选取正确与否,将直接影响该方法优越性的发挥。
- Sublevel caving without sill pillar 无底柱分段崩落法
- sublevel caving method without sill pillar 无底柱分段崩落法
- no sill pillar and high-sublevel caving 无底柱高分段崩落法
- Sublevel caving with sill pillar 有底柱分段崩落法
- caving method without sill pillar 无底柱崩落法
- Sill pillared mining has been used in Tongshan Copper Mine where high tonnage of ore has been reserved in the sill pillars. 铜山铜矿采用有底柱采矿法留下的底柱矿石量较大。
- A creeper was entwined round the pillar. 一根攀缘植物缠绕在柱子上。
- This dress is made of artificial fibers. 这件衣服是人造纤维的。
- Her artificial gaiety disguised an inner sadness. 她以矫揉造作的快乐掩饰著内心的悲痛。
- little segment caving mining method without sill pillar 小分段无底柱崩落采矿法
- I can't stand his artificial smiles. 我受不了他的假笑。
- I was fitted an artificial tooth by the dentist. 牙医给我镶了颗假牙。
- He has been a pillar of the Church all his life. 他一生都是教会的热心支持者。