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- Clastic rock and low-grade metamorphic rock, and the non-disease area is mainly in the coal stratum. 通过对重病区、轻病区及非病区人群的环境摄碘量估算。
- Controlled source audio magnetic telluric (CSAMT) is an effective approach to detect deep coal stratum in complicated-terrain mountain. 摘要对于复杂地形山区深部煤系地层的勘探，可控源音频大地电磁法(CSAMT)是比较有效的一种方法。
- The author supposed that it is feasible for us to take the methods discussed in this paper to handle the issue of the coal stratum pressure.Some metrical problems is also studied here in the paper. 通过对钻孔煤层气压力测试机理分析,肯定了该方法在煤层气开发评价工作中应用的可能性,并强调了测试中应注意的几个问题。
- Baste on the analysis of study contents and methods of coal faults,mechanic characteristics of rock mass in coal stratum and the theory of cause of fault formation were put forward. 本文在全面分析煤层断层研究内容、研究方法的基础上,提出加强煤系地层岩体力学性质研究、不断完善断层成因理论是煤层小断层成因预测的基础。
- Mining in medium - thick coal strata 中厚煤层开采
- Collapse Treatment for Coal Stratum of Kuigang Tunnel 葵岗隧道煤系地层坍塌处理
- 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。
- On features of piedmont soft soil on slope in soft areas of coal strata in Southwest China 西南煤系地层软岩地区坡麓相斜坡软土特性研究
- 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。
