| 释义 |
traction/ˈtrækʃ(ə)n/n. 1 the act of drawing or pulling a thing over a surface, esp. a road or track (尤指在路面或轨道上对物体的)牵引，拖拉 steam traction 蒸气牵引 2a a sustained pulling on a limb, muscle, etc., by means of pulleys, weights, etc. (滑轮、砝码等作用于四肢、肌肉等的)拉力；牵引力 b contraction, e.g. of a muscle (肌肉等的)收缩(力) 3 the grip of a tyre on a road, a wheel on a rail, etc. (轮胎摩擦路面、轮子摩擦轨道等的)摩擦力 □ tractional adj.□ tractive /ˈtræktiv/ adj.[French traction or medieval Latin tractio, from Latin trahere tract- ‘to draw’] |