超音波的

The Mega-Sonic Scatter-Cat Repeller looks like a megaphone because it actually is one.

这个音波驱猫器看去像个扩音器，因为它确是。

It is also an excellent method to study the non-functioning kidney which cannot be seen in the intravenous pyelogram.

功能不好，静脉肾盂摄影术无法照出肾臓亦可用音波图作进一步探讨，很适合小儿科学使用。