中文
Sign in
AI tools
聊天
热门问题
时间线
Loading AI tools
全部
文章
字典
引用
地图
File:Sonographer doing pediatric echocardiography.JPG
来自维基百科,自由的百科全书
Found in articles
File:Sonographer doing pediatric echocardiography.JPG
sonographer
performing an ultrasound examination of the heart of a baby. The child's mother is present. This examination is called
echocardiography
.