采用两层介质之间污染物质量浓度连续和通量连续条件，处理衬里系统底端边界条件。
After the continuous mass concentration and flux conditions of the contaminant between two media were adopted, the bottom boundary condition of liner systems was treated.
全开时阀门流通量能力大，压力损失小，且介质不会沉积在阀体中腔。
When the valve is fully open, flow capacity is big, pressure loss is small, and the medium would not deposit in the body cavity.
全开时阀门流通量能力大，压力损失小，且介质不会沉积在阀体中腔。
When the valve is fully open, flow capacity is big, pressure loss is small, and the medium would not deposit in the body cavity.
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