We have made a system of optically-recording induction magnetometer of 81-type, for micropulsation observations along Eastern Coast of China.

为了记录短周期地磁脉动，我们研制了81型照相记录感应式地磁脉动观测系统。

youdao

We have made a system of optically-recording induction magnetometer of 81-type, for micropulsation observations along Eastern Coast of China.

为了记录短周期地磁脉动，我们研制了81型照相记录感应式地磁脉动观测系统。

youdao