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- This article introduced the performance of this kind of flushing fluid,and application of polycrylamide thick liquid thick dispersion system mud,suppression mud,froth mud in coal formation stratum. 介绍了冲洗液的性能,分析了聚丙烯酰胺浆粗分散体系泥浆、抑制性泥浆、泡沫泥浆等不同类型的冲洗液在煤系地层中的应用。
- Wayaopu coal formation is one of the most important coal formations and the earliest idea of oils f rom terrigenous deposit possibly origin ated f rom it . 瓦窑堡煤系是我国重要的含煤岩系之一 ,陆相生油的观点最早可能源于瓦窑堡煤系含油性特征。
- Rule of coal formation in Shuanghua Coal field 浅析双桦煤田成煤规律
- This article has analysed the environmental impact characteristics of gangue, which from Hunan coal formations, simultaneously according to the material composition characteristics of gangue to propose the reasonable comprehensive utilization way. 摘要文章对湖南各煤系煤矸石的环境影响特性进行了分析，同时根据各煤系煤矸石的物质组成特点提出合理的综合利用途径。
- 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。
- Characteristics of sediment and coal formation in Qiaozixuan prospecting area 渭北乔子玄勘探区沉积与聚煤特征
- 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？
- COAL FORMATION AT A MAJOR COALBED IN XISHANYAO GROUP OF THE HUAINAN COAL FIELD 准南煤田西山窑组主要煤层成煤原始物质堆积方式
- 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。
- The country is rich in oil and coal. 这个国家石油和煤的资源丰富。
