на плоскости
• The coordinates of a point in (or on) the plane ...
• Integrals are used to compute areas bounded by curves in a plane.
Русско-английский научно-технический словарь• The coordinates of a point in (or on) the plane ...
• Integrals are used to compute areas bounded by curves in a plane.
Русско-английский научно-технический словарь