Pilobolus剧团以吸收不同寻常的元素出名，不过最为新奇的恐怕要属这两个在乔伊斯舞台上为舞者MattDelRosario伴舞的四螺旋桨直升机（学名“四旋翼飞行器”）。
Pilobolus is known for dances that incorporate unusual elements. Few, though, have been stranger than the two four-rotored helicopters that accompanied Matt Del Rosario on the stage of the Joyce.
飞机采用非气密舱和四台动力不足的涡轮螺旋桨发动机，使它仅仅适用于低-中空飞行。
The aircraft has an unpressurised cabin and four underpowered turboprop engines, making it only suitable for low- to medium-altitude flight.
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.
经过四个月的飞行训练，威廉王子学会驾驶螺旋桨式飞机和直升飞机。他是英国王室中成为皇家空军飞行员的第四代成员。
He learnt how to fly propeller-powered planes and helicopters and is the fourth generation of British royals to become an RAF pilot .
中国制造的“亿航184”无人机拥有四个螺旋桨。
中国制造的“亿航184”无人机拥有四个螺旋桨。
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