When all the instruments had been checked out,the pilot signalled that he was ready for takeoff.
所有仪表都检查过之后,驾驶员
出起飞准备就绪的信号。
When all the instruments had been checked out,the pilot signalled that he was ready for takeoff.
所有仪表都检查过之后,驾驶员出起飞准备就绪的信号。
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