“navigational datum”的概念、定义、翻译、参考文献-科学参考

单词	navigational datum
释义	navigational datum Encyclopedia 工学江河湖泊测量释 navigational datum航行基准面内河航道的水深起算面。由若干个连续、相互衔接、不同斜率的斜面构成的相对基准面。也是江河航道图的深度基准面。
随便看	protable hardness tester protactinium protactinium-231 protactinium-233 protagonist Protagoras protamine protandry protanope protanopia protaxis protea family Protea flower protease protease cleavage sites prediction protease inhibitor protease; proteinase proteasome protectant protect areas land ownership protected area Protected area and National Park of New Zealand protected area law protected area management protected area monitoring

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