黑匣子脉冲发射器的发射范围只有几英里。

The black box pinger has a range of only a few miles.

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如果你把能量源放到发射器上，就能发射电磁脉冲。

If you hook up a power source to a transmitter, it generates a pulse.

youdao

如果你把能量源放到发射器上，就能发射电磁脉冲。

If you hook up a power source to a transmitter, it generates a pulse.

youdao