sprag

sprag读音音标

英[spræg]

美[spræg]

基本意思释义

n.制轮木; 煤面防护柱; 制轮杆

短语及实用例句

Roller bearing clutch is a new kind of frictional sprag clutch.

滚柱轴承离合器是一种新型的摩擦式超越离合器.

英英释义

Noun

1. a chock or bar wedged under a wheel or between the spokes to prevent a vehicle from rolling down an incline

2. a wooden prop used to support the roof of a mine