معنى كلمة المحيط في القاموس

Endless synchronous belts, of an outside circumference exceeding 60 cm but not exceeding 150 cm

Endless synchronous belts, of an outside circumference exceeding 150 cm but not exceeding 198 cm

Endless transmission belts of trapezoidal cross section (V belts), V ribbed, of an outside circumference exceeding 180 cm but not exceeding 240 cm

Endless transmission belts of trapezoidal cross section (V belts), other than V ribbed, of an outside circumference exceeding 180 cm but not exceeding 240 cm

Endless transmission belts of trapezoidal cross section (V belts), other than V ribbed, of an outside circumference exceeding 60 cm but not exceeding 180 cm