The tau particle is a type of lepton in particle physics.

The muon is a part of particle physics.

The muon plays an important role in particle physics.

He is the lineage of the eldest son in that family.

Dry distillation is a chemical reaction that involves heating a substance to high temperatures, turning it into vapor, and then cooling it into a liquid or solid.

This old science book explains the concept of circular current in detail.

The ship is moored at the harbor.

The ship was moored at the harbor.

Yesterday's mahjong game ended in a draw.

He caused a draw in mahjong.