He's got a surface flow of suavity, but he's rough as a rasp underneath.他表面看来和和气气的, 其实是个粗野狂暴的恶棍.rasp with a file用锉子锉There was an ugly rasp in his voice.他说话时声音十分刺耳难听.Snow muffles the shriek of metal and the rasp...
通过相关的实验,确定了影响绕流的一些因素.So we fixed some factors which affect detouring flow.给出了带襟翼偏转的三维机翼绕流的一种求解N -S 方程的计算方法.A N - S method for solving the flow around a wing with deflection of flap is presented.提出了一种用于模拟圆柱绕流的振荡边界层流动的新方法 ...