The devices emitted barely detectable radio signals that allegedly guided u. s.drone strikes .

这些设备发射出几乎不可测的无线电讯号，据称是用来引导无人机袭击的。

Some signals can be crude .

有些信号是粗鄙的。

The initial signals are here .

一开始信号就很强劲。

There have been mixed signals .

这些是混淆的信号。

The recent signals are still mixed .

最近的信号仍不明了。

Financial markets are sending mixed signals .

财经市场的信号复杂难定。

The signals are loud and clear .

这释放出的信号清晰无疑。

Trace system calls and signals .

跟踪系统调用和信号。

Signals also appear to be to blame .

问题似乎又出在信号上。

The signals so far have been mixed .

迄今各方的信号有好有坏。