upper water level的用法和樣例：
例句
- A dock construction built on a river bank causes naturally the water level upstr eam to rise and influ-ences the local flow pattern.
河岸碼頭建筑物勢必導致其上游水位壅高及對碼頭附近水流流態(tài)產(chǎn)生影響。 - The upper Mississippi River in Missouri and Illinois is about to hit its high point.
位于密蘇里州和伊利諾斯州的密西西比河上游水位將達到頂點(diǎn)。
