The use of this machine is simple.

This scarce mineral is very expensive.

Thulium is a rare element, mainly used in the manufacture of lasers.

He conducted an experiment using a laser.

He is researching laser technology.

We are working on the manufacturing of new products.

We are building a factory to manufacture new products.

Hydrogen is the most abundant element in the universe.

He mainly eats vegetables.

This computer can be used by anyone.