词汇 | ultrasonic |
释义 | ultrasonic adjective uk /ˌʌl.trəˈsɒn.ɪk/ us /ˌʌl.trəˈsɑː.nɪk/ Ultrasonic sound is too high for people to hear.(声音)超声的 Compare supersonic at the top of a range of sound highShe has a very high voice. high-pitchedHe talks to his dog in the most ridiculous high-pitched voice. shrillHe called the dog back with a shrill whistle. reedyHe had a thin, reedy voice. Sound & its properties acoustically acoustician anechoic anti-noise aurally binaural echo HD high def high definition monaural monaurally mono quadraphonic sonic soundproofing soundscape thunder twangy unlistenable ultrasonic | American Dictionaryultrasonic adjective[ not gradable ] us/ˌʌl·trəˈsɑn·ɪk/ (of sound waves) too high for people to hear Examples of ultrasonicultrasonic There were several results about amplitude of ultrasonic signal in air. Ten to twenty grains were selected from each sample, washed with methanol in an ultrasonic bath and rinsed with distilled water. This ultrasonic treatment is an invasive technique because surface samples have to be cut out from the plant and studied in bath sonicators. Ultrasonic inspecting subsystem: it is carried by the robot to detect the flaws and to measure the thickness of the tank surface. To apply this technique, a short burst of ultrasonic energy is generated, amplified and transmitted by a transducer. The reason for this control simplicity is the additional information about working areas provided by the ultrasonic system in addition to numerical ranges. Among these techniques, ultrasonic systems have attracted much interest because of their low cost and potentially good accuracy for distance measurement. Despite their simple and accurate range measurement, use of ultrasonic transducers in map building is plagued by a few shortcomings. Ultrasonic examinations documented good fetal growth and did not display any abnormalities. Errors due to the ultrasonic beam width are clearly shown (1 to 6). The main sensory element is a standard commercial ultrasonic sensor which can be rotated relative to the robot body. They, therefore, investigated the utility of a limited cardiac scan, performed during a routine obstetric ultrasonic examination. The ultrasonic transducers14 have a 10 degree aperture (beamwidth), without any secondary lobes. The obstacle avoidance of the platform in an unknown space is accomplished using ultrasonic sensors integrated in the platform. Accuracy and repeatability of bladder volume measurement using ultrasonic imagery. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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