The reverse flow region is observable near the pipe wall.

管壁附近存在明显的回流再附区；

youdao

Their results were in good coincidence in the core flow region.

在核心流区两者的一致性较好；

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The effect of roughness on particle motion in the recirculation zone is weaker than that in the fully developed flow region.

壁面粗糙度对流场中不同位置处颗粒运动影响的强弱不同，其中逆流区处较弱，下游处较强。

youdao

But while money will soon flow into the region, the biggest losers are global insurers.

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Since those early years the Kurdish economy has blossomed, with construction booming all over the region as billions of dollars flow in to fund drilling activities.

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Despite the fanfare surrounding last week's arrival of 1, 000 American paratroopers at a muddy airstrip 30 miles north of Irbil, and the constant flow of men and materiel to the region, Kurdish officials admit that the northern front will be a considerably downsized affair.

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