The presupposition of water rights transaction is distribution differentiation of space-time, non-equilibrium of supply-demand and marginal return rate differentiation of water rights owners.
水资源时空分布的差异性、供求的不均衡性和水权主体边际资源回报率的差异，是水权交易制度存在的前提和基础。
According to the equilibrium conditions of forces acting on a soil element, the problem for non-linear distribution of earth pressure of cohesive backfill is studied.
本文根据作用在土单元体上力的平衡条件，研究了粘性土的土压力非线性分布问题。
The MHD equilibrium solutions of a toroidal plasma with non-circular cross-section and linear current distribution are written in terms of a fast convergent series.
用一个收敛很快的级数构造了非圆截面、线性电流分布环形等离子体的磁流体平衡解。
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