地面效应是汽车空气动力学研究的主要难点之一。
The ground effect is one of the main difficulties in road vehicle aerodynamics.
汽车风洞是进行汽车空气动力学研究的主要试验设备。
And automotive wind tunnel is a main test equipment to research automotive aerodynamics.
汽车风洞是进行汽车空气动力学研究的主要试验设备。
And automotive wind tunnel is a main test equipment to research automotive aerodynamics.
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