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- Soft coal burns with more flames than hard coal. 烟煤燃烧时火焰较无烟煤多。
- The technology of coal plough have been applied in the exploitation of medium-sized and thin coal seam through analysing and comparing the characteristic of cylinder mining machine and coal plough. 对比分析了滚筒采煤机与刨煤机的特性,并将刨煤机开采技术运用于中等及薄煤层的开采中,提高了煤炭生产效率,实现了工作面采煤的全部自动化,具有广泛的推广和应用价值。
- 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 this paper, the basic physical and themical properties of the pulverized bituminous and hard coal used in XISCO (Xiangtan Iron and Steel Company)B. 作者测定了湘钢高炉喷吹用烟煤与无烟煤粉的基本物理化学性能,进行了烟煤与无烟煤混合喷吹的试验研究;
- The combustion characteristics of a hard coal, two kinds of biomass and their blends were investigated by thermogravimetric analysis. 本文通过热分析技术,对无烟煤、玉米秸杆与废弃加工木屑两种生物质及其混合物的燃烧特性进行了实验研究。
- Innovation of Coal Plough Structure 犁煤器结构的改进
- Shackle of round link chaine for coal plough 刨煤机用圆链卸扣
- Startup and shutdown of coal plough 犁煤器的启动与停止
- Sublevel caving technique has been utilized in Datong mining area under hard rock and hard coal, problems including low recovery ratio and spontaneous fire in gob have been overcome to achieve safe and high prodction. 大同煤矿集团“两硬”条件侏罗纪厚煤层下分层工作面应用低位放顶煤开采技术,解决了传统工艺所造成的煤炭资源回收率低、空区自然发火危险程度高等技术难题,实现了安全高效开采的目的。
- Development and present status of coal plough in China 我国刨煤机的发展和现状
- It is hard to sleep without a cooler in this room. 没有空气调节器，在这间屋里很难入睡。
- Status and Development Measures for Coal Plough in China 我国刨煤机的现状及发展对策
- The first day I entered the firm, the boss gave me a hard furrow to plough. 我第一天进公司上班，老板就给了我一份苦差事。
- The soil is hard and reluctant to the plough. 地硬难耕。
- John felt it hard to rig out his family. 约翰感到难以为一家大小置备衣着。
- Application of roboticized mining techniques using coal plough on Malan mine 刨煤机自动化开采技术在马兰矿的应用
- The hard core in the party make all the decisions. 这个党的核心成员决定一切。
- Hard copy is computer output on paper, printing or graphics. 硬拷贝是出现在纸上、印刷上或图表上的电脑输出。
- I scrubbed hard at the stain to see if I could get it off. 我使劲擦这个污迹，看能不能将它去掉。
- Research on improving cutting anthracite ability of coal plough in this country 提高国产刨煤机截割硬煤能力的研究
