Rem is a unit of radiation absorption.

Radiation therapy is often used in cancer treatment.

This vacuum cleaner has a powerful suction.

This sponge absorbs water well.

What is the unit of measure for this product's weight?

During REM sleep, we dream the most.

The radiation dose in this area exceeds the safety standards.

In this experiment, we will use the International System of Units.

An identity matrix is a square matrix in which all the elements on the diagonal are 1 and all other elements are 0.

An imaginary unit is an important concept in mathematics.