面积收缩的英文

contraction in area

contraction of area

• 面积:    area
• 收缩:    contract; shrink
• 面积收缩率:    percentage reducti ...

例句与用法

1. The area contraction ratio has obvious influence on the flow pattern , discharge , wall pressure and air pressure inside level rotary flow
   研究发现面积收缩率对流态、泄流量、壁面压强和空腔内的气体压强均有较大的影响。
2. The influence of the area contraction ratio of rotary flow generator on the hydraulic characteristics of level rotary flow has been investigated by the hydraulic model test of an internal energy dissipation tunnel
   摘要通过模型试验，研究了起旋器出口面积收缩率对水平旋流泄洪洞水力特性的影响。
3. For the larger area contraction ratio , the flow condition becomes more complicated , the discharge of the tunnel and the change of the negative pressure in the cavity pocket will be reduced , but the cavity diameter of the level rotary cavity flow and the dissipation ratio of the system will be increased
   面积收缩率较大时，流态变化复杂，泄流量和环流空腔内的负压的变化减小，但空腔环流的空腔直径和泄洪洞的消能率增大。
4. Through the experiment , it is found that , when the compression percentage closes to 20 % , the compression pressure at the far end changes quickly and differs from that at the near end ; and when the compression percentage is less than 20 % , the compression pressure at the near end rises quickly and that at the far end transits from instability to reverse distribution state
   实验研究表明，冠状动脉面积收缩接近到原来的20 %时，远段收缩压迅速与近段收缩压分离；当冠状动脉面积收缩到小于原来的20 %时，近段收缩压迅速上升，远段压力从不稳定状态迅速过渡到收缩压呈反向分布状态。