2) limen
[英]['laimen] [美]['laɪmɛn]
色差阈;声差阈;阈
3) threshold of reflected ultrasonic wave
回波阈值
1.
indicated that the key problem of this system in the process of implementation,that is ascertaining the threshold of reflected ultrasonic wave and imple- mentation of multi-functional system.
指出了该系统实现中的关键问题,即回波阈值的确定和系统多功能化的实现。
4) Comeback threshold
回归阈值
6) audibility threshold,hearing threshold,threshold of sound,threshold of detectability
听觉阈<声>
补充资料：回声
回声
从被检物体的声不连续部分或声不均质部分反射回来的超声波。
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