The mine reportedly had an accident rate treble the national average.

据报道，那个矿的事故发生率是全国平均水平的三倍。

The road has higher accident rate.

这条街肇事率很高。

We should try to cut down the accident rate.

我们应该尽量降低事故率。

The control target of accident rate is zero.

事故率控制目标为零事故。

There is a high accident rate in this factory.

这个工厂的事故率很高。