These levels come from outside activities that penetrate the classroom structure, from teaching activities, and other noise generated inside, which can be exacerbated by room reverberation.

这些（噪音）可以是穿透教室建筑结构的室外活动声、教学活动的声音以及室内产生的其它各种声响，这些声音都会因为房间的回声效果而被放大。

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Those experiencing these disorders often find sounds such as crowd noise and the noise generated by machinery painful and distressing.

那些经历这些障碍的人常常觉得噪音——如人群的噪音和机器产生的噪音——令人痛苦和苦恼。

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The theoretical limit of sensitivity in any measurement is determined by the noise generated by the resistances present in the circuit.

测量灵敏度的理论极限取决于在电路中的电阻所产生的噪声。

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Building social impact campaigns that reach target audiences in the sea of online noise generated by Facebook and Twitter can be daunting.

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The amendments are opposed by council officials, who say the noise generated by the turbines could have an adverse impact on surrounding properties.

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This new research, then, will serve multiple functions: Using specialized sensors, processors, and algorithms, the project team will measure noise in real time, tracking both the noise generated by various pieces of wave energy equipment and general background noise.

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