“Regulations on Administration of Sand Excavation in the Courses of the Yangtze River”的概念、定义、翻译、参考文献-科学参考

单词	Regulations on Administration of Sand Excavation in the Courses of the Yangtze River
释义	Regulations on Administration of Sand Excavation in the Courses of the Yangtze River Encyclopedia 工学水利政策法规释 Regulations on Administration of Sand Excavation in the Courses of the Yangtze River《长江河道采砂管理条例》中国为加强长江河道采砂管理，维护长江河势稳定，保障防洪和通航安全所制定的行政法规。
随便看	difficult and painful urination Difficult Climbing difficult flammability difficult group Difficult Husband, Difficult Wife Difficulties at Answering a Guest difficulties in horizon difficult solution salt process for mineral material of mineral materials difficulty of approximation difficulty of urination Diffie Diffie-Hellman key exchange protocol Diffie Hellmann key exchange protocol Diffie-Hellmann key exchange protocol Diffie Hellman problem Diffie-Hellman problem diffluence difform diffract diffracted wave diffraction diffraction angle diffraction by a circular aperture diffraction by a rectangular aperture diffraction contrast

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