The sky as a medium of transport; (also) a route through the air, esp. one used regularly by aircraft.
| 单词 | θ207164 |
| 释义 | society > travel > air or space travel > specific movements or positions of aircraft > air as medium for operation of aircraft > [noun] (18) skyway1900 The sky as a medium of transport; (also) a route through the air, esp. one used regularly by aircraft. airspace1908 The space in the air directly above an area of the earth's surface, esp. as used for the operation of aircraft. Subcategories:— route through the air (9) — supporting body of air (1) — air-pocket (2) — vapour trail (3) — ice (1) |
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