препятствие

см. тж. наталкиваться на барьер; помеха

• The size of the ship is no barrier (or obstacle) to the application of this principle.

• The most critical deterrent to the use of martensitic steels is ...

• This is a serious handicap to such a study.

• Such boundaries presented obstacles to slip propagation.

• The main impediment to the development of such a theory was ...