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ultrasound

/ˈʌltrəsaʊnd/

Meanings
noun

超声波，超音波

Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.

Examples :

"The doctor used ultrasound to see the baby inside the mother's womb. "
医生用超声波来观察母亲子宫里的宝宝。
medicine technology physics sound frequency device science

Related Words

Illustration approximately

approximately adverb

/əˈpɹɒk.sɪ.mət.li/ /əˈpɹɑk.sɪ.mət.li/

大约，大致，左右。

"...approximately 60 beats per minute."

...大约每分钟60次。

Illustration developing

developing verb

/dɪˈvɛləpɪŋ/

发展， 进展

"The students are developing their reading skills in their English class. "

学生们正在英语课上发展他们的阅读能力。

Illustration growing

growing verb

/ˈɡɹəʊɪŋ/ /ˈɡɹoʊɪŋ/

生长，增长，扩大。

"Children grow quickly."

孩子们长得很快。

Illustration therapeutic

therapeutic noun

/θɛɹəˈpjuːtɪk/

疗法，治疗剂

"The doctor prescribed a therapeutic for her persistent headaches. "

医生给她开了种治疗偏头痛的药剂。

Illustration greater

greater adjective

/ˈɡɹeɪ.tə(ɹ)/

更大的，较多的，较长的

"A great storm is approaching our shores."

一场更大的暴风雨正在逼近我们的海岸。

Illustration purposes

purposes noun

/ˈpɜːpəsɪz/ /ˈpɝpəsɪz/

目的，目标，宗旨。

"The student studied hard with the purposes of getting good grades and graduating on time. "

这个学生努力学习，目的是取得好成绩并按时毕业。

Illustration diagnostic

diagnostic noun

/daɪəˈɡnɒstɪk/

诊断技术，诊断方法

"The doctor used a series of diagnostic tests to determine the cause of the student's persistent headaches. "

医生使用了一系列诊断技术来确定这位学生持续头痛的原因。

Illustration hearing

hearing verb

/ˈhiːɹ.ɪŋ/ /ˈhɪəɹ.ɪŋ/ /ˈhɪɹ.ɪŋ/

听到，听见。

"I was deaf, and now I can hear."

我以前是聋子，现在我能听见了。

Illustration frequency

frequency noun

/ˈfɹiːkwənsi/

频率， 频度.

"The frequency of bus service has been improved from one every 15 to one every 12 minutes."

现在公交车的发车频率提高了，从原来的每15分钟一班改为每12分钟一班。

Illustration ultrasonic

ultrasonic adjective

/ˌʌltrəˈsɒnɪk/ /ˌʌltrəˈsɑːnɪk/

超声波的，超音的

"The dog whistle emits an ultrasonic sound that humans can't hear, but dogs can. "

这种狗哨会发出超声波的声音，人类听不见，但是狗能听见。

Illustration examine

examine verb

/ɪɡˈzæmɪn/

检查，审查。

"He examined the crime scene for clues."

他仔细检查了犯罪现场，寻找线索。

Illustration kilohertz

kilohertz noun

/ˈkɪləˌhɜːrts/ /ˈkɪloʊˌhɜːrts/

千赫，千赫兹

"The radio station broadcasts at a frequency of 980 kilohertz. "

这家电台以980千赫的频率广播。