radial tire
US /ˈreɪ.di.əl ˌtaɪər/
UK /ˈreɪ.di.əl ˌtaɪər/
1.
子午線輪胎, 輻射層輪胎
a type of vehicle tire in which the ply cords are arranged at 90 degrees to the direction of travel, providing better grip and longer tread life
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Most modern cars are equipped with radial tires for improved performance.
大多數現代汽車都配備了子午線輪胎以提高性能。
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You can tell it's a radial tire by the way the sidewall bulges slightly.
透過側壁略微鼓起的方式，你可以判斷出這是子午線輪胎。