“constrained Birkhoff system”的概念、定义、翻译、参考文献-科学参考

单词	constrained Birkhoff system
释义	constrained Birkhoff system Encyclopedia 理学伯克霍夫力学释 constrained Birkhoff system约束伯克霍夫系统普法夫-伯克霍夫原理中的变分不是彼此独立时对应的系统。
随便看	river and ocean combined transportation river aquaculture river bank river bank collapse river basin river basins in China river bed river bed armoring riverbed deformation riverbed intake structure riverbed with heterogeneous habitat structure river biota river bottom tunnel river branching parameter river canalization river capture river cascade hydropower development river channel bed river channel bed form river channel self-adjustment river channel strengthening engineering river chart river closure river connectivity restoration river corridor

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