| Expression | 超声波心动描记器一种用来显示详细的大脑图象的仪器，利用超声波发送和反射的差异来测试并无伤无痛 |
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| Meaning | An instrument that in a painless and noninvasive manner uses the differential transmission and reflection of ultrasonic waves to create a detailed visual image of the brain. |
| Reading | chāo shēng bō xīn dòng miáo jì qì yī zhòng yòng lái xiǎn shì xiáng xì de dà nǎo tú xiàng de yí qì， lì yòng chāo shēng bō fā sòng huò fǎn shè de chā yì lái cè shì bìng wú shāng wú tòng |
Tags: hsk4-limited3-part4
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