21.   The principal technical problems which had to be resolved were breakage due to heavy-duty service and abuse.

22.   This is a true mega-project which has faced gigantic technical problems.

23.   There were a few technical problems.

24.   ...a technical problem reported by the pilot moments before he lost contact with the control tower.

25.   The engineer and his son held frequent consultations concerning technical problems.

26.   The programme is now seven years behind schedule as a result, firstly of increased costs, then of technical problems.

27.   Both Israel and Ethiopia claimed that the halt was due to technical problems.

28.   Unconfirmed reports also indicated that the aircraft had a history of neglected technical problems including the malfunction of both of its weather radars, first identified in August.

29.   From that standpoint he looks at world development, taking into account the technical problems but concentrating mainly on the moral issues involved.

30.   He had also to tackle the technical problems of bringing two curriculum systems into one entity.