您要查找的是不是：
- upper plane of coal bed 煤层项板
- It is a new way of the utilization of coal bed gas. 为井下抽放煤层气的利用提出了一条新的途径。
- Distance from bottom of bed to upper plane of table 床台底面至工作台面距离
- Preliminary research on structural law of coal bed beneath nappe in No. 对新集二矿推覆体下煤层构造规律进行了初步研究。
- vertical plane projection of coal bed 煤层立面投影图
- For measuring exactly on gas content of coal bed,required high core recov ery and short time to hoisting and loa ding. 为了准确测定煤层含气量,要求取心作业必须有高的收获率和尽可能短的提钻及出筒装罐时间。
- Distance from the upper plane of table to the bottom of frame 工作台平面至床身基面的距离
- Parallel to or in the plane of the horizon. 水平的与地平面平行的或在地平面中的
- The mining of shallow coal bed in Shenfu Mine is seriously threatened by suffosion hazard of coal shaft. 神府矿区浅部煤层开采受到矿井溃砂的严重威胁。
- Reserves of coal, coal bed methane gas, bauxite, refractory clay, potassic rock and so on rank first in China. 煤、煤层气、铝土矿、耐火粘土、铁矾土、含钾岩石等储量居全国首位；
- The development of Coal bed Methane (CBM) has made greater progresss in recent years. 摘要近年来，煤层气开发取得了较大进展。
- This species has reached a higher plane of development. 这一种属已达到更高的发展阶段。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- The infection of deep part mining to draining of superficid part water bearing ground,thickness of coal bed and obliquity to mining are analyzed. 分析了覆盖破坏的覆岩岩性及结构对地表移动和覆岩破坏的影响,深部开采对浅部含水层疏干、煤层厚度及倾角对开采条件的影响;
- By the actual simulation of the concrete region, summarizes the investigative method of simulation in the geological evolution history of coal bed gas. 通过对具体地区的实际模拟,总结出了煤层气地质演化史数值模拟研究的方法。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- Distance from the end of auxiliary broach holder rest to the upper plane of table 辅助刀夹座端面至工作台面的距离
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- This paper sets forththe Occurrence law and good prospect of coal bed gas in JiXi coalfield by analyzing the char-actelisties of gas Source rock, reservoir and cap rock. 从气源岩特征、煤层气情况、储集层和盖层特征分析入手，阐明了鸡西盆地煤成气赋存规律与远景。
- He has a small plane of his own. 他有一架自己的飞机。
