“1985 national height datum”的概念、定义、翻译、参考文献-科学参考

单词	1985 national height datum
释义	1985 national height datum Encyclopedia 工学高程控制网释 1985 national height datum1985国家高程基准采用青岛水准原点和根据青岛验潮站1952～1979年潮汐观测数据确定的黄海平均海面所定义的高程基准。1988年1月1日启用。
随便看	elliptic equation elliptic exponential function elliptic fixed point elliptic flow elliptic form elliptic function elliptic functional elliptic function field elliptic function of the first kind elliptic function of the second kind elliptic function of the third kind elliptic function theorem elliptic genus elliptic geometry elliptic group elliptic group modulo p elliptic harmonic space elliptic helicoid elliptic homology elliptic-hyperbolic elliptic hyperbolism elliptic hyperboloid elliptic hypergeometric series elliptic image ellipticine

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