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Encyclopedia
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释
datum plane
基准面
用来确定测量、设计和生产对象上某一几何元素所依据的另外一个几何平面。
理学
海洋工程水文
释
tidal elevation datum
基准面
由潮汐数据表示的用于海岸及海洋工程中高程测量和水深测量的起算面(零面)。
Physics
datum
复数:data
①数据 ②已知数 ③基准面
Mathematics
datum pluane
基准面
Astronomy
datum level; datum
基准面
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Ancient Chinese Measures and Weights
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