coal box煤炭箱coaln.煤；木炭vt.烧成炭；供应煤vi.加煤；装煤Coal Characteristic-Furnace Lines Coupling煤质-炉型耦合coalbed methane exploitation and utilization煤层气开发利用Coal property evaluation with standardization煤质评价与煤质标准化coalescence inclined plate sedimentation tank聚结斜板沉降Coal Enterprises'Boundary and its InspirationsCoalmine Mechanical Equipment Expanding Project煤矿机械设备扩建项目coal resource-exhaustion and city declination煤竭城衰coal-pulverizing system with middle-storage中储式制粉系统coal-controlling thrust-faulted tectonic zone控煤逆冲断裂带

1. Coal is first gasified in a simulated underground environment.
   煤块首先在一个模拟的地下环境中进行气化。
2. They are picking over the cinders in the rubbish heap for unburned pieces of coal.
   他们正在检查垃圾堆中的煤渣，拣出未烧掉的煤块。
3. The coal has been burnt to cinders.
   煤烧成了煤渣。
4. A laborer takes a rest on a cinder dumpsite in Changzhi, China.
   在中国长治，一名工人在煤渣垃圾场酣睡。