upstream line
常見例句
- 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。 返回 upstream line