英语词汇“under-ground”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	under-ground
释义	under-groundBNC²³⁶²¹³⁺¹ 例句 Under-ground steam generators as a new and very attractive equipment for hot extraction of stringy oil are already used in some USA oil fields. 作为一种非常有吸引力的稠油热采新工艺，井下蒸汽发生器在美国一些油田已有应用。 cnki
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