侧壁高度与轮胎宽度之比约为一（1）的充气轮胎的构造类型。标准轮胎制成交叉轮胎或子午线轮胎。标准轮胎通常是高压轮胎。
Construction type of pneumatic tyres with a side wall height to tyre width ratio of approximately one (1). Standard tyres are made as cross-ply tyres or radial tyres. Standard tyres are usually high-pressure tyres.
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