Methods An input circuit impedance tester with metal shells that could shield part of the external interference signal was made;

方法：自制输入阻抗测试仪，采用金属外壳可屏蔽部分外部的干扰信号；

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The sensors are attached to tiny optical fibres and are also not affected by external interference such as bad weather.

传感器连接到微小的光学纤维，也不会受外界的干扰，比如恶劣天气的影响。

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They oppose most external interference with an individual's choices - whether by society, the state, or any other group or institution.

他们反对大多数来自外部对个人选择的干预，不管这种干预是来自社会、国家，或者任何其他团体或机构。

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Although data are still lacking on the direct impact of mobile technology on cognition, there is extensive evidence showing that our brains are exquisitely sensitive to external interference by both irrelevant distractions and multitasking.

CNN: How mobile tech can influence our brain