satellite operating lifetime

例句：

1. 1. The satellite's operating lifetime isexpected to last for several years.
   这颗卫星的运行寿命预计将持续数年。
2. 2. The spacecraft's operating lifetime is crucial for itssuccess.
   航天器的运行寿命对于其成功至关重要。
3. 3.The satellite's operating lifetime was extendeddue to the successful launch.
   由于发射成功，这颗卫星的运行寿命得以延长。