The cruise altitude which results in the best fuel mileage.

可获得最佳燃油哩程的巡航高度。

youdao

CRUISE altitude, An altitude or flight level maintained during enroute level flight.

巡航高度，在航线上水平飞行期间，飞机所保持的高度或飞行高度层。

youdao

CRUISE, Phase of flight where altitude and speed are basically constant.

巡航，飞机的高度和速度基本上没有什么变化的飞行阶段。

youdao

Soon, I will climb to a cruise altitude of 15, 500 feet to clear the highest of the Sierra Nevada Mountains.

FORBES: Flying to Aspen--Almost

Researchers at the Massachusetts Institute of Technology and Cambridge University have estimated the impact on the ground of emissions from aircraft flying at cruise altitude (about 35, 000 feet), a problem typically ignored by regulations.

ECONOMIST: Planes and pollution

As the aircraft descended from its cruise altitude of 17, 000 feet (5, 200 m) to 14, 000 feet (4, 300 m) near Rome VOR, it apparently entered a thunderstorm cell and encountered a massive amount of water and hail.

FORBES: Could You Land A Large Plane On An Interstate Highway?