岩溶泉域地下水具有集中排泄的特点，它类似于流体力学中的非恒定孔口出流。
The groundwater in Karst spring basin has a characteristic of concentration drain, it is similar to unsteady orifice outflow in fluid mechanics.
运用孔口出流公式、伯努力方程、沿途泄流公式及损失规律，建立了泄流管路的通用方程组。
By means of formula of orifice come out, Bernoulli equation, formula of discharge along way and law of lose, general group of equation of discharge flow was established.
因此研究泄水孔流道有无钢衬以及不同钢衬厚度对孔口应力的影响很有必要。
Therefore, the study of scupper flow channel whether steel liner as well as different steel liner thickness on the impact of orifice stress is necessary.
因此研究泄水孔流道有无钢衬以及不同钢衬厚度对孔口应力的影响很有必要。
Therefore, the study of scupper flow channel whether steel liner as well as different steel liner thickness on the impact of orifice stress is necessary.
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