模拟计算结果表明：与其他领域应用的旋风分离器相比，五边形入口、三心大涡壳式旋风预热器内筒入口附近次级流动相对较弱；
The results of the simulation indicate:compared with cyclone in other domain, the secondary flow of the preheating cyclone with pentagonal inlet and three core volute structure is relatively weaker.
离心泵和混流泵常见的压水室是螺旋形的，称为涡壳。
Centrifugal and mixed flow pumps pressurized water chamber is a common spiral-shaped, called the volute.
螺旋桨表面和它的尾涡面离散为四边形双曲面元，每个面元上布置等强度偶极子和源汇分布。
The surface of propeller and its trailing vortex is divided into a number of small hyperboloidal quadrilateral panels with constant source sink and doublet distributions.
混流式水轮机尾水管内螺旋形涡带引起的压力脉动是造成混流式水轮机组振动的主要根源之一，严重威胁机组的安全运行。
For Francis turbines, the pressure pulsation in draft-tubes induced by helical vortex rope is one of the main problems and it would seriously affect the safe operation of the unit.
浅浮雕蛋箭饰线脚（带有交替的椭圆形及尖形），还有爱奥尼亚柱头、奔狗模式（或波形涡卷）上所见的涡卷。
Bas-relief egg-and-dart moldings (with alternating oval and pointed forms), and scrollwork such as that found on Ionic capitals and in the running-dog pattern (or wave scroll).
取出面粉团，压至圆形，放到铺好烤盘纸的烤盘上，并用手指在中间压一个涡形。
Line base of baking tin with non-stick baking paper. Take out dough. Shape suitable amount to rounds. Place on baking tin. Make a hollow in the centre with finger.
太平洋中有一个巨大的涡状形垃圾带，其面积大约是得克萨斯州的两倍，充满着小片塑料和其他碎片。
The Great Pacific Garbage Patch, a swirling vortex roughly twice the size of Texas filled with tiny bits of plastic and other debris.
太平洋中有一个巨大的涡状形垃圾带，其面积大约是得克萨斯州的两倍，充满着小片塑料和其他碎片。
The Great Pacific Garbage Patch, a swirling vortex roughly twice the size of Texas filled with tiny bits of plastic and other debris.
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