| 单词 | coal seam |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔coal〕There are substantial reserves of methane gas trapped in coal seams in the area.该地区煤层之中储有大量的甲烷气体。牛津搭配〔drive〕It drives a hole into the coal seam using a hydraulic bit.它用水力钻头在煤层上钻洞。外研社新世纪〔intermix〕Coal seams intermixed with iron ore.煤层和铁矿混杂在一起。21世纪英汉〔seam〕The average U.K. coal seam is one metre thick.英国煤层的平均厚度为一米。外研社新世纪〔seam〕The average UK coal seam is one metre thick.英国煤层的平均厚度为 1 米。柯林斯高阶 |
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