| 单词 | boundary light |
| 释义 | > as lemmasboundary light boundary light n. (see quot. 1951). ΘΚΠ society > travel > air or space travel > airfield or airport > [noun] > boundary of airfield or airport > lights boundary light1937 1937 Reports & Mem., Aeronaut. Res. Committee No. 1793. p. 1 Light signals used in aviation..at the aerodrome..boundary lights. 1951 Gloss. Aeronaut. Terms (B.S.I.) iii. 23 Boundary lights, lights defining the boundary of a landing area. < as lemmas |
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