The concentric circles and spiral patterns indicate the vortex portal of the area, the entry into what the indigenous termed as Spirit world.
同心圆和螺旋图指出了此地的漩涡入口，也就是土著人所称的灵性世界的入口。
Around the dark core of an optical vortex, the energy flow carried by the light beam is like a spiral staircase, flowing in a clockwise or counterclockwise direction.
绕着光涡旋的黑暗中心，光束携带的能量流就像螺旋梯，沿着顺时针或者逆时针方向流动。
The research indicates that the microscale spiral (vortex)growth dislocation is another important growth mechanism of Pteria penguin and blister pearl from Sanya, Hainan Province.
通过对该珍珠层的表征与示踪，初步证实微尺度螺旋（涡旋）生长位错是海南三亚企鹅贝及其附壳珍珠又一重要的生长机制。
It is shown that there are two regions in the cyclone, the steadily tangential flow in the spiral channel and the combined vortex flow in the centre.
计算结果表明，旋风分离器内部的流场分为两部分：螺旋通道内比较稳定的流场和筒体中心区域的复合涡结构流场。
The solitary wave theory of the weakly nonlinear, non-axisymmetric disturbances is used to model the spiral vortex breakdown.
本文使用弱非线性、非轴对称扰功波的孤立波模型模拟螺旋型涡破裂。
Spectrum analysis reveals the frequency characteristics of vortex breakdown point oscillation and spiral wave.
频谱分析确定了破裂点脉动和螺旋波的频率特征。
The flow field characteristics of vertical vortex with multi-circle spiral flow at hydraulic intakes are described by numerical simulation, experimental investigation, and theoretical equations.
为描述进水口前立轴旋涡多圈螺旋的流场特性，运用数值模拟、试验研究和理论公式3种方法。
The pressurized-water chamber design adopts rectangular section and half-spiral vortex chamber.
压水室设计采用矩形断面、半螺旋形涡室。
A vortex member is arranged on the vortex net board. The vortex member is a spiral twist sheet with a spiral Angle. The axial shape of the spiral twist sheet is circular.
所述旋流构件为一段带螺旋角的螺旋扭片，所述螺旋扭片的轴向形状为圆形。
A vortex member is arranged on the vortex net board. The vortex member is a spiral twist sheet with a spiral Angle. The axial shape of the spiral twist sheet is circular.
所述旋流构件为一段带螺旋角的螺旋扭片，所述螺旋扭片的轴向形状为圆形。
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