(1) Meshing spur gears must have the same diametral pitch.

(2) The diametral pitch is usually an integer.

(3) The conjugate ellipsograph is designed according to the characteristics of the main—diametral circle.

(4) The potential profile on the diametral line on uniformly charged petal-like plane is deduced by means of potential formula of point charges.

(5) Diametral pitch : the number of teeth per inch of pitch - circle diameter.

(6) The stub pitch for splines in this standard is twice the diametral pitch.

(7) Points, which remain stationary in the vibration cycle, form a diametral line called nodal diameter.

(8) This paper introduces a rarely seen method of describing with diametral distance.

(9) Then, a logic computational diagram is constructed for calculating diametral growth by assuming as tubing fatigues.