The varying law of the final volatile yield of 18 different coal types was studied at different heating rates by thermobalance.
采用热天平在不同的升温速率下对18种煤的最终挥发分产量的变化规律进行了研究。
There are two different types of coal – in fact two different types of demand – when it comes to the coal market.
煤炭市场存在着两种不同类型的煤炭，事实上就是两种不同类型的需求。
There are different types of coal.
煤有很多不同类型。
According to different external conditions, 16 fire blocks are divided into 3 types: mine vacant space fire, small coal-pit fire and seam outcrop fire.
根据外因条件不同将乌达矿区16个火区划分出大矿采空区起火、小煤窑起火和煤层露头起火3种类型；
It also discusses transforming ways of different types of coal-source materials to diamond and influential elements of transforming effect.
讨论了不同炭源材料转变金刚石的行径与影响转变效果的因素。
The bolt types are various in coal mine roadway support. Different kinds of bolts have different anchorage performances and different applicable conditions.
煤矿巷道锚杆的种类繁多，我国煤矿巷道锚杆以树脂粘结式锚杆居多。
The effects of minerals (oxides) on coke microstructure are studied by adding 13 types of different oxides into coal to carbonize using optical microscopy and X-ray powder diffraction.
将十三种矿物质（氧化物）添加到煤中炭化，用光学显微镜和X射线衍射方法研究矿物质的存在对所得焦炭显微结构的影响。
It also discusses transforming ways of different types of coal-source materials to diamond and influential elements...
讨论了不同炭源材料转变金刚石的行径与影响转变效果的因素。
It also discusses transforming ways of different types of coal-source materials to diamond and influential elements...
讨论了不同炭源材料转变金刚石的行径与影响转变效果的因素。
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