This electric motor is using three-phase power.

In this chemical reaction, the gaseous phase plays an important role.

This compound is stable in the solid phase.

In this experiment, we will measure the temperature at which the substance becomes a liquid phase.

In ancient Japan, the 方相 played an important role.

This stratum shows a specific facies.

In Japanese grammar, the passive voice is used to create a passive form.

I started a new job the month before last.

The surface of the moon appears gray when viewed from Earth.

The moonlight is illuminating the quiet night.