обозначение

см. тж. для обозначения

The following designations are used: α = l/a, β = a/t and γ= c/a. Adjacent lines of the six-phase system may be determined by the Roman-numeral labelling of the vector diagram.

Notation (or Nomenclature): C = specific heat capacity, G = rate of heat generation per unit volume, ...

The notation P(x, y) denotes a point P with coordinates (x, y). Symbols: θ = temperature, θ0 = undisturbed ground temperature.

The excitation of a three-axis magnetic dipole source is most conveniently described in vector notation.

Источник: Русско-английский научно-технический словарь на Gufo.me