coal auger

英 美
  • 螺旋钻连续采煤机

coal auger的相关资料：

临近单词

coal oil coal coal transportation quantity coal excavation working face coal hydrocarbon source rock coal consumption for heating coal-gathering regulations coal accumulation depression coal - burning power plant coal slurry vibrating screen coal mining under water body coal-gas occurrence boiler
目录 查词历史