| 单词 |
periscopic sextant |
| 释义 |
periscopic sextant periscopic sextant[‚per·ə′skäp·ik ′sek·stənt] (navigation) A sextant designed to be mounted inside an aircraft, with a tube extending vertically upward through the skin of the aircraft. A sextant designed to be used in conjunction with the periscope of a submarine. |
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