In experiments, a blindfolded harbor seal can detect the passage of a fish by using its whiskers to sense changes in flow velocity - even 30 seconds after its prey has passed by.
在试验中，一只被蒙住眼睛的海豹用胡子感应水流速的变化，从而发现鱼游动的路径——即使那猎物是在30秒以前经过那里的。
Through improving the effects of the figuration and internal structure of box, the flow velocity of nozzle of water curtain system of box type is better even.
对箱体设计进行外形及内部结构的改进后，箱体喷嘴出口的速度达到均匀。
Through improving the effects of the figuration and internal structure of box, the flow velocity of nozzle of water curtain system of box type is better even.
对箱体设计进行外形及内部结构的改进后，箱体喷嘴出口的速度达到均匀。
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