The dam wall is 870 ft. (265 m) high - taller than the Hoover dam - and when completed, the dam formed a reservoir 47 miles (75 km) long that completely submerged the old town of Tehri.

大坝高870英尺(265米)——比胡弗大坝高——竣工以后，该大坝形成了一个长达47英里(75千米)的蓄水池，完全是老的特赫里城镇完全陷入水中。

youdao

The elevation of the country is 60 m to 8848 m, all within a distance of 150 km with climatic condition ranging from sub tropical to arctic.

国家的海拔高度从60米到8848米，在仅150公里的范围内，气候条件从亚热带到寒带的变化。

youdao

The reservoir is 400 km long, 15 km wide and 100 m deep.

整座水库长400千米，宽15千米，深100米。

youdao

Phase two would cover an area of over 16 sq m (40 sq km) along the eastern boundary of the phase one area.

BBC: RSPB to oppose windfarm plan in Thames estuary

When completed, the London Array will be one of the world's largest offshore wind farms covering an area of 90 sq m (232 sq km) between Margate and Clacton.

BBC: RSPB to oppose windfarm plan in Thames estuary

Such meteor strikes are rare in Russia but one is thought to have devastated an area of more than 2, 000 sq km (770 sq m) in Siberia in 1908.

BBC: Meteorite fragments found in Russia's Urals region