focal ultrasound的用法和樣例：
例句
- High intensity focused ultrasound technique has high precision in ablating tissues,and has much choice in transducers.
高強度聚焦超聲對組織切除具有很高的精確性，換能器探頭的選擇也較為靈活。 - Conculion The focused ultrasound therapy is a safe and effective method for treatment of chronic cervicitis and is worthy to be popularized.
結論聚焦超聲用於治療慢性宮頸炎有效和安全，是一種值得推廣的新方法。
