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- Support for special thick complex roof of soft and weak semi coal and semi rock roadway in Jixi Mining Area 鸡西矿区软弱半煤岩巷特厚复合顶板支护
- semi coal and rock roadway with weak floor 半煤岩软底巷道
- Test and research on site blasting in semi coal and rock mine roadway with partings 含夹矸层半煤岩巷现场爆破试验研究
- Coal and oil are natural products. 煤和石油是天然物产。
- Coal and rock oil, or petroleum, are of great value as fuels. 煤和石油或汽油，作为燃料，价值极大。
- Applications:The stabilizer of flexible and semi - flexible PVC. 用途：PVC软质制品、半软质制品热稳定剂。
- Man can make heat by burning wood,coal and gas. 人可以用燃烧柴，煤，煤气的办法产生热量。
- Wood, coal and oil are different kinds of fuel. 木头、煤炭和石油是不同类型的燃料。
- He is going to make new things from coal and oil. 他打算用煤和石油制成新东西。
- Liaoning abounds in coal and iron. 辽宁盛产煤和铁。
- That area is rich in coal and oil. 那个地区盛产煤和石油。
- Nylon is made from air, coal and water. 尼龙是由空气、煤和水合成的。
- Man can make heat by burning wood , coal and gas. 人可以用燃烧柴，煤，煤气的办法产生热量。
- Man can make heat by burning wood, coal and gas. 人可以用燃烧柴，煤，煤气的办法产生热量。
- Nylon is made from air,coal and water. 尼龙是由空气,煤和水加工制成的。
- Three types of coal were discovered in this are, namely the coking and anthracites and semi anthracites. 在这个地区找到了三种煤炭，即焦炭，无烟煤和半烟煤。
- Wecan run trains and machines with coal and oil. 我们在很多方面用煤和石油。
- We combust coal and other fossil fuels. 我们使用煤碳及其他化石燃料做燃料。
- It only seems like a spinoff from the Demi Gods and Semi Devils novel. 这片子拍成神化群魔乱舞了，所有人物打架比超音速战斗机对战还强。
- The gas and petrol are examples of secondary fuels by which coal and oil may be more effectively used. 焦炭，煤气和汽油是更加有效地利用煤和石油的第二级燃料的范例。
