frontal surface उदाहरण वाक्य

Sectional density is a very important aspect of a projectile or bullet, and is for a round projectile like a bullet the ratio of frontal surface area ( half the bullet diameter squared, times pi ) to bullet mass.
The frontal margin of the pancreas separates the inferior surface of the pancreas, and along this border the two layers of the transverse mesocolon diverge from one another; one passing upward over the frontal surface, the other backward over the inferior surface.