Declaring Python variables. There are two phases of creating a variable: 1  First, you need to initialize a variable by creating a container and assign it a name. 2  This is called initialization. 3  Second, you assign value to the the variable. 4  This is known as assignment.
Cylindricity-Cylindricity describes a condition of a surface of revolution in which all points of a surface are equidistant from a common axis. Symbol: . Cylindricity controls a cylindricals features element such that the total variations are minimized during manufacturing.
Kinematic viscosity is the ratio of absolute or dynamic viscosity to densityâa quantity in which no force is involved. I give the definition in quotation marks, if you search with the same, you can see the same definition in most of the books.