Around a fifth of an average car tyre is therefore made of natural rubber. In an aeroplanetyre that figure can be more than four-fifths.
因此，一个普通车胎含有约1/5天然橡胶，而一个飞机轮胎中则超过4/5。
2
Then the horizontal load to aeroplane undercarriage tyre can be obtained more accurately by making use of the proposed model and results of drop-test simultaneously.