“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	nonconservative field nonconservative force non-conservative scattering non-conservative system nonconservative system non-consolidation of kidney qi nonconstant nonconstant mapping nonconstant polynomial nonconstant-sum game non-constructive non-constructive method non-constructive proof non-constructivity noncontact action noncontact coupling noncontacting switch non-contact interaction non contact irradiation non-contact irradiation noncontact irradiation non-contact magnetic recording non-contact measurement non-contact psychophysiological testing non-contact recognition

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