In structure design, the width of tread running surface and the thickness of sidewall are increased;

在结构设计方面，增大行驶面宽度和胎侧厚度；

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In structure design, the width of tread running surface and the thickness of sidewall are increased;

在结构设计方面，增大行驶面宽度和胎侧厚度；

youdao