“marine sextant”的概念、定义、翻译、参考文献-科学参考

单词	marine sextant
释义	marine sextant Encyclopedia 工学〔其他导航仪表〕释 marine sextant航海六分仪手持式，用以测量天体高度或物标夹角的精密光学仪器，因其分度的弧长约为圆周长的1/6而得名，是古老的用以测定船舶位置的航海仪器。
随便看	cycloidal pin-wheel reducer cycloidal steel-ball reducer cycloid bevel gear cycloid catacaustic cycloid evolute cycloid involute cycloid of Ceva cycloid radial curve cycloid rotary compressor cycloidum anomalarum cycloinverter cyclolignolide cyclolysis cyclomastopathy cyclomastopathys cyclomatic complexity cyclomatic matrix cyclomatic number cyclometallation cyclometer cyclomorphosis cyclonastic cyclonasty cyclone cyclone boiler combustion

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