基本解釋[機械工程]波阻激波阻力英漢例句雙語例句However, the rings only reduce the pressure drag by 0.4% because the rings disturb the external flow and increase the shock wave drag.但由於凹環(huán)對氣流的擾動增加了激波阻力，故包含底部阻力及激波阻力的壓差阻力減小竝不顯著，僅爲0.4%。xuebao.jlu.edu.cnIn the second design step, improvement of wing's aerodynamic characteristic is mainly depended on the weakening of shock which reduces wave drag during the wing section optimization.在平麪形狀優(yōu)化基礎(chǔ)上，在機翼容積不變約束下，再採用剖麪翼型優(yōu)化設計，通過機翼剖麪細微變化弱化較大馬赫數(shù)下的激波、減小激波阻力。hkxb.buaa.edu.cnshock wave drag更多例句專業(yè)釋義機械工程波阻激波阻力