Ultrasound yog ib hom elastic mechanical yoj hauv cov khoom nruab nrab. Nws yog ib daim ntawv yoj. Yog li ntawd, nws tuaj yeem siv los txheeb xyuas cov ntaub ntawv physiological thiab pathological ntawm tib neeg lub cev, uas yog, kuaj ultrasound. Nyob rau tib lub sijhawm, nws kuj yog ib hom ntawm lub zog. Thaum ib qho koob tshuaj ntawm ultrasound ...
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