英语语法分析

Noise is measured in anechoic room.

噪音值是在无音室中的测量值。

Simple anechoic chamber was used for noise reduction.

根据降噪量要求对设备间采用简易消声室设计。

An anechoic chamber is used to test the iPhone's signal strength.

iPhone的信号强度需要在消声室中进行。