1.
aircraft flying at subsonic speeds.
以次音速飞行的飞机。
2.
a subsonic jet airliner operated over short distances.
短距离的次音速的客机。
3.
The first trial flight of supersonic airliner Concorde took place at Bristol.
协和"超音速飞机在布里斯托尔首次试飞。
4.
1969 The first trial flight of supersonic airliner Concorde took place at Bristol.
"协和"超音速飞机在布里斯托尔首次试飞。
5.
Five rapid high tones, low battery repeated every 20 seconds
5 声快速高提示音，每20 秒重复一次低电量
6.
In 1977, the supersonic Concorde made its first landing in New York City.
1977年，超音速协和式飞机首次在纽约市着陆。
7.
Supersonic or ultrasonic meter
超音速（波）测速仪
8.
trisonic aerodynamics
三音速(亚音速、跨音速 、超音速)空气动力学
9.
a subsonic speed, aircraft, flight
亚音速、 亚音速飞机、 亚音速飞行.
10.
The screen dissolves to clouds moving at speed across the sky. The demonic voices are heard once again. Fade to black.
（屏幕消散出快速移动的云。魔鬼的声音再次响起。渐黑。
11.
A Numerical Study for the Resonant Triad Interaction and Secondary Instability in a Three-dimensional Supersonic Boundary Layer;
三维超音速边界层中三波共振和二次失稳机制的数值模拟研究
12.
A voice having a range between soprano and contralto.
次高音；女中音音域在高音与低音中间的嗓音
13.
acceleration type phonocardiogram microphon
加速型心音图微音器
14.
a sonic boom follows an aircraft as a wake follows a ship.
超音速飞行会产生音爆。
15.
transsuper aerodynamics
跨音速和超音速空气动力学
16.
A system of shorthand based on phonetic transcription.
表音速记法基于语音表述的速记方法
17.
Note the use of the vowel sound in should and must when they are pronounced quickly.
注意should和must中快速发音时元音的发音。
18.
lower in range than tenor and higher than bass.
音域比次中音低、比低音高。