половина

All plastic materials were obtained in sheet form of thickness one-half inch.

The distance between any two adjacent rivets is equal to one-half (or to half) the pitch.

This reduces the volume of the gas sample to half its original value.

A neutral hydrogen atom loses half as much energy per centimetre as the proton in passing through ...

Источник: Русско-английский научно-технический словарь на Gufo.me