| 释义 |
Definition of main wheel in English: main wheelnoun 1The first, or driving, wheel in a series of gears, especially in a clock or watch. 2Aeronautics each of the wheels which are located near the centre of an aeroplane and bear most of its weight when it is on the ground, as distinguished from a nose or tail wheel.
Origin Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker. Definition of main wheel in US English: main wheelnoun 1The first, or driving, wheel in a series of gears, especially in a clock or watch. 2Aeronautics each of the wheels which are located near the centre of an aeroplane and bear most of its weight when it is on the ground, as distinguished from a nose or tail wheel.
Origin Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker. |