例句與造句

1. Drag divergence Mach numbers M dd for a given family of propeller airfoils can be approximated by Korn's relation:
2. The value of the drag divergence Mach number is typically greater than 0.6; therefore it is a supersonic regime above approximately Mach 1.2.
3. A supercritical airfoil is shaped specifically to make the drag divergence Mach number as high as possible, allowing aircraft to fly with relatively lower drag at high subsonic and low transonic speeds.
4. Since the shocks form when the local air velocity reaches supersonic speeds, there is a certain " critical mach " speed ( or drag divergence mach number ) where this effect becomes noticeable.
5. It's difficult to find drag divergence mach number in a sentence. 用drag divergence mach number造句挺難的