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- soft coal entry 软岩煤巷
- Soft coal burns with more flames than hard coal. 烟煤燃烧时火焰较无烟煤多。
- But the pubic only has soft coal, no any char. 可公家只有烟煤,没有干炭。”
- We also supply blind coal and soft coal from China and Indonesia. 煤炭产品主要是无烟煤与有烟煤等。
- The combustion characters of petroleum coke were between those of soft coal and anthracite. 石油焦的燃烧特性处于烟煤和无烟煤之间。
- A fault diagnostic expert system for coal entry tunneller's hydraulic system has been built, and the system structure, knowledge acquirement and experssion, inference rules were introduced. 建立了一个煤巷掘进机液压故障诊断专家系统,介绍了系统的结构、知识表示、推理机制及知识获得等。
- In solving the problem of deformation in surrounding rocks of the overlying coal entry caused by upper protective seam mining, reinforcing the surrounding rocks by grouting is a feasible method. 摘要为了解决下保护层开采对上覆煤层巷道围岩变形的影响,采用注浆加固巷道围岩是一种可行的方法。
- Finally great depth of burial, long time and higher temperature may metamorphose the lignite into soft coal or bituminous coal and in extreme cases, to hard coal or anthracite. 褐煤经长时间进一步的深埋以及较高的温度的作用,便可变成软煤或烟煤,再进一步变化,便成了硬煤或无烟煤。
- In the meantime, measuring expansion energy of initial releasing gas of soft coal in Ma jia gou 0521 and absorb constant and remains gas content. 同时,对马家沟矿0521软分层的煤样进行了初始释放瓦斯膨胀能试验及吸附常数和残余瓦斯含量的测定。
- The project takes pyrogenic dry distillation gas of soft coal in continuous retort as the fuel gas and produces ferroalloy coke and crude tar oil. 本项目是以烟煤在连续炭化炉中热解的干馏煤气作为城市燃气,同时付产铁合金焦和粗焦油。
- Benzene Clear, colourless, flammable volatile spirit. It is narotic and toxic, obtained when soft coal is heated in the absence of air, used as a medium for carrying gravure inks. 是透明,无色,可燃烧,挥发性酒精。它具麻醉性和有毒。是软煤在无空气下加热生成。用作凹版印刷油墨的介质。
- This project is to use soft coal as material and the modern advanced technique of Heer gas compressing to produce methanol, which is accorded with the industrial of the state. 该项目利用烟煤为原料,采用当代先进的谢尔加压煤气技术建设,符合国家产业政策。
- The results can satisfy with fundamental needs for finding the distribution laws of tectonic soft coal in mines with coal and gas outburst (at non mining area especially). 识别结果能满足初步查明突出矿井(尤其是未采掘区)构造软煤分布规律的需要。
- Bolting technique in large section coal entry 大断面煤巷锚杆支护技术
- Technique of bolt and beam supporting in coal entry 煤巷锚梁支护技术的应用
- Soft drinks are much in demand this hot weather. 这么热的天气,软饮料需求量很大。
- He was fawning on a damsel with soft words. 他正用甜言蜜语向一位女郞献殷勤。
- Application of bolting in three-soft gob-side coal entry 锚杆支护在三软沿空煤巷中的应用
- Study of bolting with wire mesh in coal entry with thin parting 薄夹矸下煤巷锚网支护探索
- I've always had a real soft spot for him. 我一向对他挺有好感。