один за другим

см. тж. в приведённом порядке; по одному; по очереди; последовательно

By the early 20th century experimental and theoretical developments were appearing at a rapid pace (or one after another).

Fragment ions of different masses are "focussed" through the exit slit in turn.

Telegraph cables on the flat sea floor were broken one by one.

Numerous other solid-state laser materials were discovered in rapid succession.

The use of each system will be discussed in turn (or by turns).

Large quarry and tunnel blasts require that the charges be detonated in sequence (or sequentially).

The welding passes are made one after the other.

These missiles can be fired repetitively almost as fast as a bolt-operated rifle.

The sets of coils may be subjected simultaneously or successively to the inducing action of the field magnets.

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