| 单词 | air sextant |
| 释义 | > as lemmasair sextant air sextant n. now historical a kind of sextant for use in aircraft. ΚΠ 1919 Trans. Optical Soc. 20 340 (title) The Baker air sextant. 1974 Technol. & Culture 15 118 What might have been the course of World War II if budget allocators of the 1930s had invested..in perfecting air sextants, driftmeters and radio navigation aids. 1987 N. Jones Beginnings Strategic Air Power iii. 62 Unfortunately the air sextant proved to be a difficult instrument to use, and the degree of skill required..was rarely attained by the average navigator. < as lemmas |
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