But it was clear that the restoration would require a gigantic effort.

The restoration of the monarchy in 1933 required a change of the Bavarian constitution, which would have been difficult to achieve.

The restoration would require a number of searches, and they had to face the possibility that some data might be permanently lost.

In an initial statement the museum said the restoration would require one to two years.

The restoration of the building, which is equivalent to a 10 story building, would require a large crane for repairs.

For example, the restoration of a fishery may require reducing temperatures, nutrients, sediments, and improving habitat.

Moreover, the restoration required about the same time as used for the leaching period.

The organization projects that full restoration of the Gulf to its former state will require decades of work.

The restoration of native tallgrass prairie is ongoing, and will require years of effort.

The restoration required significant labour and money to complete.