还有一种地球物理勘探仪器，这就是盖格计数器。它用来探查放射性物质的存在。

Still another geophysical device. That is Geiger counter, which detects the presence of radioactive substances.

youdao

还有一种地球物理勘探仪器，这就是盖格计数器。它用来探查放射性物质的存在。

Still another geophysical device. That is Geiger counter, which detects the presence of radioactive substances.

youdao