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a device that provides reactive force when in motion relative to the surrounding air
can lift or control a plane in flight
Synonym: airfoil aerofoil control surface
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the outer boundary of an artifact or a material layer constituting or resembling such a boundary
e.g. there is a special cleaner for these surfaces
e.g. the cloth had a pattern of red dots on a white surface
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information that has become public
e.g. all the reports were out in the open
e.g. the facts had been brought to the surface
Synonym: open
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a superficial aspect as opposed to the real nature of something
e.g. it was not what it appeared to be on the surface
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the extended two-dimensional outer boundary of a three-dimensional object
e.g. they skimmed over the surface of the water
e.g. a brush small enough to clean every dental surface
e.g. the sun has no distinct surface
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the outermost level of the land or sea
e.g. earthquakes originate far below the surface
e.g. three quarters of the Earth's surface is covered by water
Synonym: Earth's surface
英语释义
1
n. the outer boundary of an artifact or a material layer constituting or resembling such a boundary
2
n. the extended two-dimensional outer boundary of a three-dimensional object
3
n. the outermost level of the land or sea
4
n. a superficial aspect as opposed to the real nature of something