Phonmeter
n. 测音器, 音波测定器
🗣️ 情景例句
I need multimedia capability for my system.
我的计算机系统需要多媒体功能。
Pleasant hours fly past.
快乐时光去如飞。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。