ultrasonic action的用法和样例：
例句
- Metallographic analyses show that the ultrasonic welding significantly refines the grains with more acicular ferrite appears in the fusion zone.
金相分析表明，在电弧超声作用下，焊缝结晶组织明显细化，焊缝区针状铁索体增加。
ultrasonic action的相关资料：
临近单词
ultrasonically
ultrasonic
ultrasonic extraction technique
ultrasonic microbubble detector
ultrasonic-assisted synthesis
ultrasonic surgical instruments
Ultrasonic guides for the blind
ultrasonic spot welding machine
ultrasonic cavitation treatment
ultrasonic diagnostic equipment
ultrasonic vibration extraction
ultrasonic assistant extraction
