“geography of river transportation”的概念、定义、翻译、参考文献-科学参考

单词	geography of river transportation
释义	geography of river transportation Encyclopedia 理学内河运输地理释 geography of river transportation内河运输地理研究内河航道和港口的发展条件、空间分布及其地域组合规律的交通运输部门地理。
随便看	closed equivalence relation closed expression closed extension closed family of sets closed field closed filament closed filter closed fishing areas closed fishing season closed-flux device closed fork mounting closed form closed-form number closed-form solution closed formula closed fuel cycle closed function closed geodesic closed graph closed-graph mapping closed graph theorem closed-graph theorem closed grill closed ground field closed group

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