The paper takes the correlated non-steady-flow inrush water calculation formula as the basic formula, and has the well field regulating calculation in the form of tables.
将地下水非稳定流涌水量计算解析式作为基本公式，列表进行水源地调节计算。
It is indicated that the flow field over a backward facing step possesses simultaneously the characteristic of non-steady flow and steady flow.
后向台阶流的流场同时具有非定常性和定常性的特性。
The topping field of an earth-rock dam is divided into one-dimensional steady spatially varied flow field and two-dimensional Non-Darcy seepage flow field.
本文将土石堰过流场区分为一维恒定变量流场和二维恒定非达西渗流场；
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