煤井 meaning in English
colliery
Examples
- It is a bleak look-out for the coal industry as the number of pit closures increases .
煤井关闭的数目日多，煤炭工业前景暗淡。 - Investigation and analysis on pneumoconiosis in four small coalmines
某市4家小煤井尘肺调查分析 - Its a bleak look - out for the coal industry as the number of pit closures increases
煤井关闭的数目日多,煤炭工业前景暗淡 - It ' s a bleak look - out for the coal industry as the number of pit closures increases
煤井关闭的数目日多,煤炭工业前景暗淡 - Rope rollers , pulleys , mountings and assemblies for colliery track haulage - specification for suspended pulley assemblies and clamps
煤井轨道运输用缆绳滚筒滑轮支架和组件.第5部分:悬挂式滑轮组件和夹具规范