“the history of irrigation technology in China”的概念、定义、翻译、参考文献-科学参考

单词	the history of irrigation technology in China
释义	the history of irrigation technology in China Encyclopedia 理学中国灌溉技术史释 the history of irrigation technology in China中国灌溉技术史农业灌溉被看作是富农、富裕的重要举措之一，几千年的农业发展积累了丰富的灌溉技术经验，在中国农业历史中有着重要的影响。
随便看	invariant continuation invariant curve invariant decision function invariant decision problem invariant decision procedure invariant decomposition invariant definition invariant delta-function invariant density invariant derivative invariant differential invariant differential equation invariant differential form invariant differential operator invariant dimension property invariant distance invariant distribution invariant divisor invariant element invariant embedding invariant embedding method invariant equation invariant estimate invariant estimator invariant estimator (estimate)

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