A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dust orbiting in rings nearly perpendicular to the plane of the galactic disk.

极环星系是种稀有的星系类型，它们有着几乎和银盘平面垂直，呈环形公转的大量的恒星、气体和星尘。

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Investigators found that the runway chosen was too short for the type of plane.

调查人员发现跑道太短，不适合这种飞机起降。

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The same type of plane, also operated by TAM, caused one of Brazil's worst air disasters in 1996.

1996年，同样归tam公司所有的一架福克尔100飞机造成了巴西历史上最惨重的一场空难。

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This High Definition 9.2 mm thin monitor features an IPS (In-Plane Switching) panel, a superior type of screen that offers consistent image appearance and colors across the entire display, even from extreme viewing angles.

ENGADGET: The AOC Aire Pro: a 23-inch IPS monitor for $199

This is a special type of Earth model which traces its idealised "horizontal" surface - the plane on which, at any point, the pull of gravity is perpendicular to it.

BBC: Europe's Goce satellite probes Earth's gravity