There is no such expression. The normal to a surface, at a given point is the radius of curvature of the surface, at that point.
The pleura is a membrane that surrounds the lungs of mammals. Presumably, the phrase means that the surface of the pleura was found to be normal in an examination.
The normal vector to the surface is a radius at the point of interest.
A curved surface area can be described as one where the gradient of the normal to the surface changes smoothly from point to point.
Bar is a unit used to measure pressure, one bar is the normal atmospheric pressure of the on the surface of the earth, and ten bar is when the pressure is ten times the normal atmospheric pressure on the surface of the earth.
The angle between the light ray and the normal (perpendicular) to the surface at the point of reflection.
Normal to the surface is a vector which is perpendicular to that surface
static of the surface
static of the surface
normal is a perpendicular from reflecting surface
It is reflected at the same angle to the normal. The normal is a line perpendicular to the surface.
the total normal induction is a over surface equal to algebraic sum of charges enclosed in surface
the total normal induction is a over surface equal to algebraic sum of charges enclosed in surface
It is reflected at the same angle to the normal. The normal is a line perpendicular to the surface.
normal faults cause mountains to form
Direction of heat flux on an isothermal surface is always normal to the surface.
The pleura is a membrane that surrounds the lungs of mammals. Presumably, the phrase means that the surface of the pleura was found to be normal in an examination.
The line perpendicular to a surface at a point is called the normal