His horse ran as fast as a ryuma.

He is studying a classical school of thought.

Ryutaro is my best friend.

This device operates using a circular current.

I measured the current using an ammeter.

We need to measure the strength of this electric current.

I want to spend time with you anytime.

A salt pan is an important facility for making salt from seawater.

The electromagnetic waves in this room are too strong, causing the electronic devices to malfunction.

A positron is a particle that carries a charge opposite to that of an electron.