ultrasonic
ultrasonic 英 [ʌltrə'sɒnɪk] 美 [,ʌltrə'sɑnɪk]
adj. [声] 超声的；超音速的 n. 超声波
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- adj. [声] 超声的；超音速的
- n. 超声波
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1. The most useful item above was probably this 15 year old ultrasonic humidifier. It produces large amounts of real fog.
上述项目中最有用的或许是这个有着15年历史的超声波增湿器，它产生大量真正的水雾。
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2. But whales communicate better through ultrasonic sounds than through human-audible sounds, especially underwater," he explained.
但与人耳可听见的声音相比，鲸鱼更‘擅长’用超声波交流，尤其是在水下。
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3. Nor would he have known that ultrasonic vibrations from a plate-like transducer would shake those glass beads into the air to be tweezed and measured as they moved in suspension.
爱因斯坦也无法知道由盘型传感器产生的超声波振动能将空中这些玻璃微珠钳除，再在它们悬垂在空中移动时进行测量。
- ultrasonic (adj.) "having frequency beyond the audible range," 1923, from ultra- "beyond" + sonic. For sense, see supersonic.
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