coal seam是什么意思_coal seam的翻译_发音_同义词_用法_例句
coal seam
中文含义:煤层
英语词性:noun
美式音标:/koʊl sɪm/
同义词:coal bed, coal vein
易混淆单词:coal mine(煤矿)
双语例句:
- The coal seam extends many miles underground.(煤层延伸了数英里地下。)
- The miners work hard to extract coal from the coal seam.(矿工们努力从煤层中开采煤炭。)