elevated stream

基本解释

Once under the elevated 4th Ring, you cross and turn left to follow the road round to where a stream vanishes under the Sihui Bridge.
在四环高架桥下，你穿过十字路口向左转，沿路走到河流消失在四惠桥下的尽头。
beijing.re-place.info
Importantly, the ion beams are not derived from elevated-pressure plasmas but rather stream from an ion source through a high-vacuum ambient.
需要注意的是，上面提到的起辅助作用的离子束发生自一个位于等离子体区域外的离子源，而不是高压等离子体当中。
netfishes.spaces.live.com
From 1958 onward, and as the city became more industrialized in the 1960s, the polluted stream and its bridges were gradually buried under at-grade asphalt and a four-lane elevated freeway.
自1958年来，20世纪60年代城市工业化程度日益提高，污染的运河和桥梁逐渐被柏油马路和4车道的高架高速公路替代。