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词汇
upstream
释义
upstream音标:[ 'ʌp'stri:m ] adv.向上游,溯流。adj.1.溯流而上的。2.(石油工业等)上游的,和石油的勘探、开采及输送到起运港口有关的〔石油工业此后的提炼等过程则称为下游(downstream)产业〕。
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更新时间:2025/3/13 7:17:57