open-flow capacity 无阻流量
absolute open-flow capacity 绝对无阻流量
absolute open flow capacity 绝对无阻流量
gas well open-flow capacity 气井无阻流量
open-flow capacity of gas well 气井无阻流量
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。
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