“polar finder”的概念、定义、翻译、参考文献-科学参考

单词	polar finder
释义	polar finder Encyclopedia 工学大地测量仪器释 north-finding instrument;polar finder寻北器用于简易天文定向的北极星观测件。又称北极星观测器、北天极寻找器。
随便看	gas flow line gas flow theory gas-forming agent gas fuel gas gangrene gas gate station gas gathering pipeline gas gathering process gas gathering process in tandem pipe network gas gathering process with annular network gas gathering process with arborization network gas gathering process with atmospheric temperature separation gas gathering process with low-temperature separation gas gathering process with radiation and annular network gas gathering process with radiation and arborization loop network gas gathering process with radiation network gas gathering station gas gathering & transportation gas gathering & transportation network gas generating composition gas generator and turbo-pump united test gas generator cycle liquid rocket engine gas generator of liquid propellant rocket engine gas generator propellant gas generator turbine

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