水是建造时间入口的屏障元素，该入口被用作在相切涡汇处的各个相切宇宙之间的门关。
Water is the barrier element for the construction of Time Portals used as gateways between Universes at the Tangent Vortex.
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.
压缩性的影响本文不采用P—G转换，而是直接使用可压缩空间后掠马蹄涡和源(汇)。
In this paper, the effect of compression does not be treated with PrandtI-Glauert's transformation, bat directly treated with compressible source (sink) and vortex.
压缩性的影响本文不采用P—G转换，而是直接使用可压缩空间后掠马蹄涡和源(汇)。
In this paper, the effect of compression does not be treated with PrandtI-Glauert's transformation, bat directly treated with compressible source (sink) and vortex.
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