1) sound path length
声程
1.
The theory of equal sound path length was used to design the focus of the ultrasonic transducer and the details of arts and crafts for making transducers were described.
论文提出了用声程相等的概念来设计超声传感器的聚焦,详细介绍了其制作工艺,并利用数字动态光弹仪器对超声换能器的聚焦声场进行了验证。
2) ultrasonic engineering
超声工程[声]
3) negative-going noise
负程噪声[声]
4) short-sonar
近程声呐<声>
5) positive-going noise
正程噪声<声>
6) echo-ranging
回波声程
1.
The use of contour acoustic echo location and two contours at one time echo-ranging calculation method in conjunction with can calculate the height of the shallow weld well and truly.
回波声程定位法和两轮廓线同时回波声程计算法配合使用,可准确计算出未焊透缺陷的高度。
补充资料：程程
1.旅途停顿处。 2.一程又一程。谓路程遥远。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条