aerial screw
now historical
noun
Any of various kinds of propeller devised for the propulsion of heavier-than-air flying machines.
Origin
Mid 19th century; earliest use found in British Patents.
| 单词 | aerial screw |
| 释义 | aerial screwnow historical noun Any of various kinds of propeller devised for the propulsion of heavier-than-air flying machines. Origin |
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