In the oil and gas industries: at or towards the source of production; spec. at a stage in the process of extraction and production before the raw…
| 单词 | θ210450 |
| 释义 | society > occupation and work > industry > drilling for oil or gas > [adverb] > towards source of production (1) upstream1973 In the oil and gas industries: at or towards the source of production; spec. at a stage in the process of extraction and production before the raw… |
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英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。