flutter checker

例句：

1. 2.
   用于检查或测试的
2. 3.
   尤指在飞行中
3. 1. The engineer was the flutter checker during the flight test.
   工程师是试飞期间的检查员。
4. 2. The pilot had to be a flutter checker during the emergency landing.
   飞行员在紧急着陆时必须是一名检查员。
5. 3. The flutter checker made sure all the systems were functioning properly before the flight.
   检查员确保所有系统在飞行前都正常工作。