A circular insignia or identification mark on a military aircraft; spec. that of the R.A.F. comprising a design of concentric red, white, and blue…
| 单词 | θ207841 |
| 释义 | society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [noun] > identification disc (1) roundel1939 A circular insignia or identification mark on a military aircraft; spec. that of the R.A.F. comprising a design of concentric red, white, and blue… |
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