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- These conclusions aid to measure drainage rate of gas and fixing on maintenance period of coal laneway. 这些结论对于检测煤层瓦斯抽放率以及合理确定煤巷的维护周期具有重要的参考价值。
- The great undulating of soleplate of the third coal layer in Wangping well field badly influence exploiting disposal and excavating coal laneway. 针对王坪井田3号煤层底板起伏变化大,严重影响开拓及采煤巷道布置的现状,利用趋势面分析的方法,分析了井田内的构造展布规律。
- Therefore,the efficient work of methane pre-warning should be done in order to provide safety for coal laneway with mechanized speedy drivage. 根据瓦斯流动理论,通过对机械化快速掘进煤巷的考察研究,对瓦斯的涌出来源和规律进行了统计分析;
- According to the construction experience of Guzhuang Coal Mine in Yangquan City for many years, the paper analyses the application of smooth blasting in coal laneway bolting. 阳泉固庄煤矿根据多年来施工实践经验,分析光面爆破在煤巷锚杆支护施工中的应用。
- The forecast system of outburst of coal laneway with method of continuous flow is a new and dynamic method of outburst forecast which taking embedded computer as core. 连续流量法煤巷突出预测系统是一种以嵌入式计算机为核心的新型动态突出预测方法。
- The Mechanism Analyses and Control Countermeasure About Two Coal Laneways Roof Fall Accidents 两起煤巷冒顶事故机理分析与控制对策
- Combining practical experience, this paper analyses laneway shoring form of coal laneway pressure zone of underlayer on close quarters coal bed, and it can acquire well economic benefit. 结合马兰矿南三采区12305工作面施工实践经验,试验分析了近距离煤层下层煤巷道压力区的巷道支护形式,取得了较好的经济效益。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- Pile on more coal the fire is going out. 火快灭了，再加上些煤。
- What can we do with the bituminous coal? 这些烟煤可以用来做什么？
- A coal fell from the fire and burned the mat. 一块煤炭从火中掉出来，烧坏了地席。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
