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1·The aircraft had reached its cruising altitude of about 39,000 feet.

那架飞机已经达到了大约三万九千英尺的巡航高度。《柯林斯英汉双解大词典》

2·This height is also the frequent cruising altitude of commercial airliners.

这一高度也是商务航线的常用巡航高度。

3·Captain: This is Captain Browning and we 're at our cruising altitude of approximately 35,000 feet.

机长：我是布朗宁机长，我们正在大约三万五千英尺的巡航高度飞行。

4·Captain: : This is Captain Browning and we 're at our cruising altitude of approximately 35,000 feet.

机长：我是布朗宁机长，我们正在大约三万五千英尺的巡航高度飞行。

5·He told me how I could get the plane back up to cruising altitude after he'd parachuted out over the ocean.

他告诉我可以在他跳伞后把飞机调回坠毁所需的角度。

6·Miss, please remain seated until the plane has reached a cruising altitude and the seatbelt light has been turned off.

小姐，在飞机达到巡航高度、安全带指示灯关闭以前，请不要离开座位。

7·The balloon will spend a few hours rising to a cruising altitude of around 36 km, where the sail will be 129 meters [423 feet] in diameter.

气球将会花费几个小时升到大约36千米的巡航高度，那里行船直径将达到129米【423英尺】。

8·Once it has reached its cruising altitude, its fasten seatbelt sign will be switched off-and so will a new no phones light alongside it.

一旦飞机到达其巡航高度，“请系上安全带”的提示灯就会熄灭，在其旁边新增的“请不要打电话”提示灯同时也会熄灭。

9·At a cruising altitude of 30,000 feet, pressure outside of the plane is about two and a half times lower than what passengers experience on the inside.

在三万英尺的巡航高度，飞机外部的气压大约比乘客感受的内部气压低2.5倍。

10·At a cruising altitude of 30, 000 feet, pressure outside of the plane is about two and a half times lower than what passengers experience on the inside.

在三万英尺的巡航高度，飞机外部的气压大约比乘客感受的内部气压低2.5倍。