casualty rate

• 伤亡事故率

casualty rate的用法和样例：

例句

1. The accident rate in deep-sea diving is comparable with that in other high risk occupations.
   深海潜水业的事故率与其他高风险职业相仿。
2. Although the accident rate per mile is only about half the rate for passenger cars, a life spent on major highways can never be really safe.
   尽管每英里的事故率只是客车的二分之一，但成天在各大高速路上生活不会拥有真正的安全。