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- The speed of this aircraft is very high. 這架飛機的速度非常快。
- The hurricane has a speed of 73 miles per hour. 颶風每小時73英里。
- The speed of a runaway horse count for nothing. 脫韁之馬的速度毫無價值。
- The speed of light is an important constant. 光速是一個重要的常數。
- The speed of the toy boat is variable. 玩具船的速度是可變的。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符號
- Rapidity or speed of motion; swiftness. 迅速，快速運動的快速或速度; 迅速
- When did the first measurement of the speed of sound take? 第一次測量聲速是在什麼時候？
- Raindrop fall at a speed of about500 to1,000 feet a minute. 雨點以每分鐘大約五百到一千英尺的速度下降。
- Airliners in service at present cannot fly faster than the speed of sound. 目前供使用的客運機飛行速度不能超過音速。
- Mach two equals twice the speed of sound. 二馬赫相當於聲速的二倍。
- The maximum speed of the aircraft is 800 m.p.h. 該飛機的最大速度為每小時800英里。
- The speed of light boggles the mind. 光速之快，不可思議。
- The workers have timed the speed of the machine. 工人們已經調準機器的速度。
- The speed of rockets transcends that of airplanes. 火箭的速度快于飛機的速度。
- Scientists have determined the speed of light. 科學家們已測定出光的速度。
- The worker is timing the speed of the machine. 這名工人正在調整機器的速度。
- The speed of the car was frightening. 這輛小汽車的速度真嚇人。
- The car went at a speed of 100 kilometers an hour. 那輛車子是以每小時100公里的速度開過去了。
- The driver can vary the speed of an automobile . 司機可以改變汽車的速度。
