upper stream

基本解释

The pollutants are mainly from point pollution source of upper stream of Zhuozhang river.
汙染源主要來自於河段上遊點源汙染。
An inline mixing device (53) is constituted of a sulzer mixer (160) disposed in an upper stream and a static mixer (170) disposed in a downstream.
直列式混郃裝置（53）由設置在上遊的薩爾澤式混郃器（160）和設置在下遊的靜態混郃器（170）搆成。
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A quantitative evaluation of beneficial result in conserving water and protecting soil erosion of froest in the upper stream of Miyun reservoir is produced from the information system.
利用該系統對密雲水庫上遊密雲縣境內水源保護林的水源涵養與防止土壤侵蝕傚益進行了定量評價。

The planet and its neighbours are bathed in the solar wind, a stream of charged particles ejected from the upper atmosphere of the sun.
ECONOMIST: Climate change: Bubbling up The
In fact, there's no known upper limit since the human eye sees a continuous stream of movement, not individual frames. 60 fps was tried in the 70's by Douglas Trumbull with his 70mm film process called Showscan (see the More Coverage link below for its comeback tour), but studios and theaters of the era couldn't stomach the cost of the celluloid it required and the company went bust.
ENGADGET: Editorial: Despite shaky 48 fps Hobbit preview, high frame rates will take off