The noise in the measured signal is constrained to "white" noise or at least nearby "white" noise.
这要求被测信号中的噪声为白噪声或至少接近白噪声。
Colton is usually on Burgan's lap or at least nearby when he is on the iPad, so she does not put any limits on his time using the tablet.
考顿通常坐在伯格的膝上或在她附近玩iPad，所以她并不限制考顿使用平板电脑的时间。
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