в любой момент

см. тж. всегда

At every instant all electron-pair waves are at the same stage in their cycle.

The hydraulic overload protection facilities enable the machine to be stopped at all times.

This implies that V = B for all time.

Since molecules vibrate, at any instant there will be molecules with a range of internuclear distances.

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