focal ultrasound的用法和样例：
例句
- High intensity focused ultrasound technique has high precision in ablating tissues,and has much choice in transducers.
高强度聚焦超声对组织切除具有很高的精确性，换能器探头的选择也较为灵活。 - Conculion The focused ultrasound therapy is a safe and effective method for treatment of chronic cervicitis and is worthy to be popularized.
结论聚焦超声用于治疗慢性宫颈炎有效和安全，是一种值得推广的新方法。
