...造（形式），结物，形相，（造）型 ③排列，组合[态]，布置[局]，格局 source distribution of constant strength 等强度源分布 vortex sheet. 涡面 .
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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.
风化砂具有分布广泛、料源丰富、造价低廉的优点，同时又有强度低、级配不稳定等缺点。
Weathered sand has benefits of wide spread, plenty of source and low cost. However it has drawbacks of low strength and unstable gradation.
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