轮胎胎面花纹

这轮胎胎面花纹已被磨平-你应该换一个新的。

There 's no tread on this tyre-you should put on a new one .

轮胎胎面花纹已经磨损得到了能发生危险的地步了。

The tread on the tyres has ( been ) worn down to a dangerous level .

粗糙的道路很快就把汽车轮胎的胎面花纹磨掉。

These rough roads soon wear the tread of motor tyres off .

采取的主要措施是：改进轮胎外轮廓、胎面花纹和胎圈结构；

The major measures were as follows : the outer profile of tire , the tread patterns and the bead structure were modified ;

因此，在确定轮胎解析模型中胎面花纹参数时应首先考虑其对侧偏模型的影响。

So it is pointed out that in defining tread parameters in analytic tire model , the effect of tread on steady cornering model should be considered in the first place .

结果表明：低温冰面上轮胎的侧偏特性与干燥路面上的轮胎相似，但胎面花纹对冰面轮胎的侧偏特性产生更明显影响；

The results showed that the tendencies of tire cornering force varied with slip angle on cold ice are similar to that of a tire on dry pavement , and different tread patterns can affect the cornering behavior of a tire , especially for a tire on ice .

影响轮胎与路面间摩擦的主要因素有滑移率，轮胎类型，胎面花纹的类型、密度系数、深度，路面粗糙度，路面污染情况，路面水膜，气候及充气压力等。

Main factors affecting the friction between tyre and road surface are : slip rate , category of tyre , tyre tread pattern type , density coefficient , depth , road surface roughness , road surface pollution situation , water film on road , climate and tyre inflation pressure , etc.