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- Bacteria break down the animal waste to form methane gas. 细菌使动物粪便分解成沼气。
- First, carbon monoxide and hydrogen react to form methane, which has one carbon atom. 首先，一氧化碳与氢反应，合成只含一个碳原子的甲烷。
- In the picoline pyrolysis experiment, the methyl disengages from aromatic ring to form methane firstly, then the following reaction of the aromatic ring is similar to pyridine. 甲基吡啶的热稳定性比吡啶差，热解时甲基首先脱离芳香环进入气相，随后芳香环的反应途径和吡啶类似；
- Forming methane hydrate in a quiescent system is a slow and incomplete process. 静态体系生成甲烷水合物是个缓慢的、不完全的过程。
- Dai Jinxing, Zhong Ningning, Liu Dehan, Xia Xinyu, Yang Jianye and Tang Dazhen.1997.The Geological Base and Main Controlling Factors on the Large and Medium Coal Formed Gas Field.Beijing: Geological Publ.House. 戴金星;钟宁宁;刘德汉;夏新宇;杨建业;汤达祯.;1997
- By the coal facies analysis,an evidence is provided for the coal forming environment in Yilli Basin. 通过煤相分析，为伊犁盆地成煤环境的研究提供了佐证。
- Transgressive coal forming and coal forming under event are the essential features of Late Palaeozoic coal accumulation in Ordos basin. 海侵成煤和事件成煤是鄂尔多斯盆地晚古生代煤聚积的基本特色。
- In addition, the paleogeography deposition environment during the coal forming can serve as an index for selecting coalbed gas areas to explore and mine. 另外,在煤层气勘探开发选区时,成煤期的沉积古地理环境可作为一个考虑因素。
- Within the seven coal forming periods restricted to from Late Carboniferous to early Late Permian,there are seven coal groups and more than 20 seams defined in the whole area,of which seams B 3,D 2and G 7 1 are economically important. 全区自晚石炭世至晚二叠世早期所限定的7个成煤期内，共圈出煤组7个，煤层20层以上，以B3，D2，G71煤层最具工业价值。
- A study of neutron field in coal formed by pulse neutron source 脉冲中子在煤中所形成中子场的研究
- Field Testing of Fracturing Technology in Coal Formed Gas Well 煤层气井压裂技术的现场应用
- 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。
