Through changing dimensions, this paper studied the principal parameters that affected additional thrust efficiency of the thrust fins.

对影响推力鳍助推效率的几个主要参数进行了变尺度研究。

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Lifting surface method and non-linear vortex lattice method were used for the calculation of propeller and rudder with additional thrust fins respectively.

对螺旋桨与舵附推力鳍分别采用升力面法和非线性涡格法计算。

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That would provide the additional thrust necessary to put the spacecraft into a trajectory to reach Mars.

WSJ: First Space Tourist to Outline Trip to Mars

But the May deal, which extended a temporary AMT exemption for one year (to keep an additional 15 million taxpayers from being thrust onto AMT in 2006), left the AMT rules for 2007 unsettled.

FORBES: Death, Taxes and Uncertainty