Friction drag is the major part of the total drag of a transport, so reducing it is essential for improving the performance and reducing the cost of a transport.
民机受到的摩阻占其总阻力很大比例，减少摩阻对改善民机性能和降低成本具有重要意义。
These meetings are a total drag.
开这些会真是烦人。
The results show that the shock standoff distance is increased and total drag coefficient and wall temperature are reduced with increasing external magnetic field.
结果表明，随着磁场的增强，激波脱体距离逐渐增加；总阻力系数和壁面温度逐渐减小。
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