基本解釋[能源科學技術]吸入管道英漢例句雙語例句Open the valve on the vent line just upstream the trip valve.打開速閉閥上游放空管線上的閥門。This digitalized optical fiber transmission system is upstream line of the bi-directional optical fiber transmission system.數(shù)字化光纖傳輸系統(tǒng),為有線制導光纖傳輸系統(tǒng)的一個部分;Butterfly or similar type valves should be installed in the line upstream and downstream of the automatic control valve to allow for maintenance service.在自動控制閥的上游和下游應該安裝蝶閥或類似的閥門,以便于進行維護維修。upstream line更多例句專業(yè)釋義能源科學技術吸入管道