The interface circuit may operate without the signal ground connection, but may sacrifice reliability and noise immunity.

接口电路可以在没有连接信号地时工作，但将牺牲可靠性和抗扰度。

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VCM, the common-mode voltage between the sensor and the signal ground, results from nearby noise sources resulting from stray capacitive coupling.

传感器和信号地之间的共模电压VCM来自周围杂散电容耦合带来的噪声源。

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Remember, next time your little hut is burning to the ground — it just may be a smoke signal that summons the Grace of God.

记住，下次当你的小茅屋被烧毁，它可能是一个烟雾信号，将上帝的恩典传达给你。

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Today,VOA broadcasts to satellites in space that send the signal back to stations on the ground that transmit programs with a clear signal.

VOA: special.2010.12.08

The top two are heading for a final showdown on Dortmund's home ground at Signal Iduna Park on April 11 which could well decide the destination of the German title.

CNN: Leaders Borussia Dortmund denied in eight-goal thriller

It has been discovered that the Airwave radio system's signal is variable on the ground floor.

BBC: Suffolk Police radio fault at Landmark House in Ipswich

Prolonged eye contact during a debate or disagreement can signal you're standing your ground.

WSJ: The Decline of Eye Contact