The results have shown that using this method to mine the ore body will not affect the stability of the surface river bed.

结果表明，用该采矿法开采矿体时不会影响地表河床的稳定性。

youdao

According to sampling analysis the surface river water and ground water in borehole have micro-corrosion on concrete structure rebar in reinforced concrete and steel structure.

根据取样分析地表河水、钻孔内地下水对混凝土结构、对钢筋混凝土中钢筋、对钢结构均具微腐蚀性。

youdao

Again there was a streak of bubbles on the surface of the river.

河面上又出现了一连串的水泡。

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Cleveland's Cuyahoga River caught on fire because of industrial wastes on the surface of the river.

VOA: special.2011.07.31

River banks often also have clay about one meter or less under the surface.

VOA: special.2009.09.14

Residents said they were concerned that problems were caused by surface water and river flooding.

BBC: Drainage study for flood-hit Tirley to go ahead

The spy Kafkor didn't appear to recognize the figure gaping at him from the surface of the river.

NPR: Excerpt: 'Legends'

He says the hippo sprang from the water, furiously attacked the canoe, then slipped back below the surface of the river.

NPR: Congolese Hunt 'Osama' the Hippo