minimum arming altitude

例句：

1. 1. The aircraft must be flown ata minimum arming altitude of 30,000 feet.
   飞机必须以最低武装高度飞行，即30,000英尺。
2. 2. The pilot hadto make an emergency landing at theminimum arming altitude.
   飞行员必须在最低武装高度紧急着陆。
3. 3. The military aircraft was flown at the minimum arming altitude forsafety reasons.
   出于安全原因，军用飞机被以最低武装高度飞行。