We use the lunar calendar to determine the date of the festival.

We plan our daily lives using the solar calendar.

He is good at playing the electric guitar.

In Japan, the solar calendar was adopted from the fifth year of the Meiji era.

In Japan, the lunisolar calendar was once used.

He is an expert in fiber optics.

Fiber optics is a part of communication technology.

He is an expert in mineralogy.

He is an expert in enzymology and conducts many researches.

This road is covered with new asphalt.