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- ventilation of coal pits (煤矿) 矿井通风
- Abstract: In the exploration process for harnessing and renovating local railways in Shanxi,the interborehole electromagnetic wave fluoroscopy was used to search for mined-out area of coal pits,which yielded satisfactory geological effects. 文摘:在山西地方铁路病害整治的勘探过程中，将电磁波孔间透视法应用于寻找煤窑采空区，取得了良好的地质效果。
- The treatment of coal spontaneous combustion caused by small coal pits intruding has several difficulties in how to drop temperature effectively,control the air leak,put out fire efficiently,etc. 小窑入侵造成的煤体自燃,其治理存在如何有效降温、漏风控制、有效灭火等几个难点。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- production capacity of coal pits 煤矿矿井生产能力
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- production preparation of coal pits 矿井生产准备
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- The country is short of known deposits of coal. 这个国家缺少已知的煤矿矿床。
- An inexhaustible supply of coal. 用之不竭的煤炭供应
- Workers should be allowed full ventilation of all their difficulties. 工人们应被允许公开讨论他们所有的困难。
- China has a wealth of coal, iron and other minerals. 中国有丰富的煤、铁和其它矿产资源。
- The oven holds sufficient heat to fire up a fresh charge of coal. 炉里有足够的热量使新加进的煤燃烧起来。
- Its production techniques include traditional techniques, thick layer ventilation of koji pits, puck machine solid method and liquid deep layer fermentation etc. 其生产工艺有传统工艺、曲池厚层通风法、圆盘机固体法及液体深层发酵法等。
- We are talking about the ignitability of coal. 我们在谈论有关煤炭之可燃性。
- Treatment of leakage of settlement joint of coal pit in mix coal mill 某配煤厂受煤坑沉降缝渗漏水的处理
- Worker shall is allow full ventilation of all their difficulty. 工人们应被允许公开讨论他们所有的困难。
- The uses of coal are by no means limited to those. 煤的用途何止那一些。
- This seam of coal reposes on a layer of clay. 这个煤层处于一层黏土岩之上。
