适航性

例句：

1. 1. The aircraft must meet the required airworthiness standards for safe operation.
   该飞机必须符合安全运行所需的适航性标准。
2. 2. The airline's certification is based on its airworthiness certificate.
   该航空公司的认证是基于其适航性证书的。
3. 3. The pilot had to demonstrate his airworthiness before taking off.
   飞行员在起飞前必须证明他的适航性。