我们最便宜的扬声器必须进行检测并且必须通过如同我们的专业扬声器必须通过的测试。
Our least expensive speaker is tested and must pass the same tests as our professional speakers.
而且，在电路基板(100)中设置开口区域，在其上装载扬声器(2)，由此对微小结构体的可动部输出测试声波。
The circuit substrate (100) is provided with an aperture region. As the speaker (2) is disposed on that region, a test sound wave is output to the moving section of the microstructure.
我们测试的PF 30的电力线分析仪，提供即时，声音反馈的噪声任何特定出口通过内置扬声器和音量控制。
We tested the PF30 with a power-line analyzer that provides immediate, audible feedback on the noisiness of any given outlet via a built-in speaker and volume control.
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