It is possible that threads are spawned in a process by other participating entities outside the control of the application and it might not be possible to control their signal masks.

线程可能是由不受应用程序控制的其他参与实体在进程中派生的，这个应用程序可能不能控制它们的信号掩码。

youdao

Wireless signals can transmit a few hundred feet, so the signal from your network could be broadcast outside of your home.

无线信号可以传输几百英尺远，因此您的网络信号可以广播到住宅范围之外。

youdao

The displacement current is amplified, converted to a voltage, and fed to the outside world as part of a composite video signal or digitized signal.

移位电流被放大，转换成为电压，作为部分复合视频信号或者数字信号输送给外部世界。

youdao

Taipei's Want Daily is already welcoming "ice-breaking expert" Mr Wang's rumoured promotion as Beijing's "signal of peace" for improved relations with Japan and the outside world.

BBC: China media: NPC spokeswoman praised

But outside of providing him with a brick wall for an offensive line, any promise to keep the signal caller healthy should be taken with caution.

FORBES: Vick Gets Military-Grade Jacket Guaranteed to Prevent Injury

Attacks like the "evil twin" disrupt a company's network from the outside, jamming its radio signals or bogging it down with a denial of service attack, then broadcasting a counterfeit signal into the building.

FORBES: How Lehman Brothers Overcame Its Wireless Fears