cruising altitude

基本解释

This height is also the frequent cruising altitude of commercial airliners.
這一高度也是商務航線的常用巡航高度。
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.
在三萬英尺的巡航高度，飛機外部的氣壓大約比乘客感受的內部氣壓低2.5倍。
It can gather data on objects reportedly as small as a shoebox, through clouds, day or night, for 32 hours from 18, 000 metres—almost twice the cruising altitude of passenger jets.
據報道這種無人機可以在18000米的高空不分晝夜的連續飛行32小時，且可以透過雲層監眡地麪像鞋盒那麽大小的目標。它飛行的這一高度幾乎是民航客機巡航高度的兩倍。

During the demonstration flights, a pilot handled the takeoff and climb to cruising altitude.
FORBES: Pilot-Optional Flight Is Closer Than You Think
Once the A380 reached cruising altitude, passengers were free to walk around both decks to explore the amenities.
FORBES: Magazine Article
Once at cruising altitude I dialed in an economy fuel setting of 53 gallons per hour at a true airspeed of 390mph.
FORBES: Magazine Article