The Red Road, I picked up a road of petals, with a touch of Qing Huan, let a heart lake surface water gently flowing, quietly spreading…

红尘路上，我轻拾起一路花瓣，执一份淡淡清欢，任一曲心湖泛起的水调轻轻地流泻，静静地蔓延……

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If the former are greater, the lake is a surface-water-dominated lake; if the latter, it is a seepage-dominated lake.

如果前者较大，这个湖就是一个以表层水为主的湖泊；如果是后者，则是一个以渗漏为主的湖泊。

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Water enters a lake from inflowing rivers, from underwater seeps and springs, from overland flow off the surrounding land, and from rain falling directly on the lake surface.

湖中的水来自于河流的水、地下渗入的水和泉水、从四周地面流进来的水，还有直接降到湖面的雨水。

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Pipes have now been put in place in Lake Nyos and nearby Lake Monoun to siphon water from the lower layers up to the surface and allow the CO2 at the bottom of the lake to slowly bubble out, preventing a repeat of 1986 tragedy.

BBC: 1986: Hundreds gassed in Cameroon lake disaster

Changing temperatures in the lake during the winter could have brought stagnant water to the surface, thus asphyxiating entire schools of fish.

ECONOMIST: What killed Fossil Lake?

Scientists from Urals Federal University found 53 small meteorites on the surface of the lake and believe a larger fragment is under water, said Viktor Grokhovsky, the scientist who led the effort.

CNN: Russian scientists track down fragments of Urals meteor