Then in May 1955 they claimed it was due to engineering difficulties.

The land used for the line was generally flat so there were no engineering difficulties and only three roads required the provision of bridges.

Its construction was originally deemed practically impossible, because of the engineering difficulties.

On the contrary, it may happen that due to engineering difficulties a silicon laser will never reach the market.

Consider the engineering difficulties of such a project!

It was originally to have opened a year ago, but engineering difficulties have repeatedly delayed its operation.

There, Wright's report of her engineering difficulties resulted in a survey of the ship.

The engineering difficulties in reaching Senafe were enormous with high mountains lying ahead.

The new station was built in 1964 to avoid the engineering difficulties of running Shinkansen lines into the center of the city.

The engineering difficulties were great, the dredging and filling a cyclopean task.