您要查找的是不是:
- dull hard coal 无烟煤
- Soft coal burns with more flames than hard coal. 烟煤燃烧时火焰较无烟煤多。
- 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。
- 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。
- The dull play seemed to last an eternity. 这场乏味的剧似乎演个没完没了。
- Market dull and slacken no business report. 市场萧条胩衰退,没有有关交易的报道。
- 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。
- The absence of color in that drawing make it dull. 那幅画因没有着色而显得晦暗。
- The dying fire was throwing out a dull red light. 将要熄灭的火发出暗红色的光。
- The old man's life became dull and colorless. 老人的生活变得呆板无趣。
- I feel a dull pain in the stomach. 我觉得胃部隐隐作痛。
- A person regarded as ungainly or dull witted. 愚笨的人被认为是笨拙的或弱智的人
- John felt it hard to rig out his family. 约翰感到难以为一家大小置备衣着。
- He couldn't teach such dull children. 他教不好这样呆笨的孩子。
- He felt a dull ache in his shoulder. 他感到肩膀隐隐作痛。
- The hard core in the party make all the decisions. 这个党的核心成员决定一切。
- He is rather dull in comparison with others. 和别人比较起来,他相当迟钝。
- 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。