определённый

I

см. тж. в определённых пределах; тот или иной

These particles can have only certain energies.

Any particular layer always contains distinctive fossils.

Each absorption band is associated with a distinct (or definite) type of electrical oscillator.

Each of the materials comprising the Earth's surface has distinct elastic properties.

II

см. тж. заранее установленный

A counter may be located at a fixed (or set) distance from the source.

III

см. тж. тот или иной

The maximum rate of change of a particular characteristic of the orbit ...

Apparatus suitable for specific test methods ...

The conveyor feeds a specified amount of coal into ...

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