“grid prime vertical”的概念、定义、翻译、参考文献-科学参考

单词	grid prime vertical
释义	grid prime vertical [`grid ¦prīm `vǝrd·ǝ·kǝl] ^NAVIGATION The vertical circle through the grid east and west points of the horizon.
随便看	secretory structure secret weapon sectile section sectional center sectional conveyor sectional core barrel sectional header boiler sectionalized vertical antenna sectional radiography section house section line section modulus sector sectoral harmonic sectoral horn sector boundary sector disk sector display sectored light sector gate sector gear sectorgram sector interleave sector map

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