The ground effect is one of the main difficulties in road vehicle aerodynamics.

地面效应是汽车空气动力学研究的主要难点之一。

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The 1-x will climb about 40km (25 miles) into the sky during the powered phase of its flight, continuously measuring vehicle aerodynamics, controls and performance of the rocket's first stage.

战神一号X型将上升到约40公里(约25英里)的高空，在其动力飞行阶段，将不间断地对其运载空气动力学指标、火箭的第一阶段的控制和表现进行测量。

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The traditional and important method for the vehicle aerodynamics is wind tunnel test, which demands strict requirement of the experimental facilities, as well as a long experimental period.

汽车空气动力学研究的传统方法是风洞试验，此方法对试验设施要求较高，并且研究周期较长。

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The I-X carried more than 700 sensors to measure vehicle aerodynamics, controls and performance of the rocket's first stage.

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One important way to achieve that is by improving the vehicle's aerodynamics.

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In the interest of improved aerodynamics and noise reduction, the front of the vehicle has been rounded and softened, ineffably feminized compared with the previous model's teeth-baring front end.

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