您要查找的是不是：
- long flame bituminous coal 长焰煤
- What can we do with the bituminous coal? 这些烟煤可以用来做什么？
- General bituminous coal mining; Motor freight. 一般烟煤开采；汽车货运。
- Of or relating to bituminous coal. 烟煤的烟煤的或与烟煤有关的
- Bituminous coal processing a lot of in-depth study. 对煤沥青加工方面有很多的深入研究。
- The coal in Xinmin district of Shenfu coalfield, Shaanxi belongs to the low-metamorphic unsticky and long flame coal of Jurassic period. 陕西省神府煤田新民区赋存的煤层为休罗纪低变质不粘煤和长焰煤。
- 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。
- A bituminous coal that burns brightly with much smoke. 烛煤一种能充分燃烧同时产生大量烟的烟煤
- A maximum of 650 KBTU/SQ FT/HR should be used for bituminous coal. 使用生煤时，上限是650 KBTU/SQ FT/HR。
- The experimental materials individually came from the soot formed in diffusion flame in natural gas, candle or butane, and a kind of bituminous coal coke was also taken as experimontal material. 实验材料为在扩散火炬中取样得到的天然气炭黑、蜡烛炭黑、丁烷火焰炭黑，同时还选用了一种烟煤焦炭。
- A dull dark-gray, brittle, porous type of bituminous coal resembling charcoal. 煤一种似的深灰色、无光泽、易碎的多孔美烟煤。
- a bituminous coal that burns with a luminous flame. 燃烧时有明亮的火焰产生的生煤。
- a bituminous coal that burns with a luminous flame 燃烧时有明亮的火焰产生的生煤
- TheASTM rankings for bituminous coal, sub-bituminous coal, or lignite fit the spreader combustion process well. 美中试验材料协会根据煤在燃烧时的性能把煤分为烟煤，次烟煤，褐煤几个等级。
- The destructive distillation of bituminous coal, done in the absence of air in order to obtain coke and other fractions having a greater percentage of carbon than the original material. 碳化作用烟煤的分解蒸馏，在没有空气的条件下进行，为得到比最初的原料所含碳的百分比大得多的焦煤以及其它馏分
- The incidence of lung cancer Xuanwei the lives of local coal, mostly bituminous coal has a lot to. 而宣威的肺癌 发病与当地的生活燃煤多为烟煤有很大关系。
- The interelation between all kinds of cohesiveness target of bituminous coal and regression equation are introduced. 介绍了集贤煤田东荣区烟煤各种粘结性指标间的相互关系及相应的回归方法。
- This method and systems are also used for other volatile-rich fuels such as brown coal and bituminous coal. 此实验方法和装置,同样适用于研究褐煤、烟煤等高挥发分燃料的输送特性。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
