... simultaneous altitudes 同时观测的高度 ; cruising altitudes巡航高度 at high altitudes 在很高的地方 ; 在很高的处所 ; 在很高之处 ; 在很高的中央 ...
双语例句
1
Slower cruising — at about Mach 0.7, or seven-tenths the speed of sound, which is 5 percent to 10 percent slower than today's aircraft — and at higher altitudes, to save fuel.