| 释义 |
ultra-sonic
基本英英例句
CpTI基因
形容词 ultrasonic:
having frequencies above those of audible sound In this paper, an ultra- sonic measurement method and option principle of ultra-sonic detector are given for oil-paper insulated transformers.
在分析超声波传播特性的基础上，提出对电力变压器局部放电的检测方法以及超声换能器的选择原则。 cnki |