While fixing breaks and leaks are important, the city's principal line of defense is the gradual replacement of old mains.

This situation led in turn to gradual replacement of traditional Polish cuisine with food prepared from anything available at the moment.

Instead, he views the network computer mainly as a gradual replacement for the company's 15,000 "dumb terminals."

A gradual replacement of the strategic aircraft fleet will also take place.

The increasing use of coal as a domestic heating fuel caused a decline in the need for firebacks and their gradual replacement by integral grates.

If approved, the project would see the gradual replacement over a 10- to 15-year period of most of the current 1960s and 1970s buildings on the Donnybrook site.

The plan provided for the gradual replacement of Syrian troops in West Beirut by Lebanese soldiers and police.

Fourthly, there is the gradual replacement of the n + 2 rule with the n + 3 rule.

Finally, ladies and gentlemen, we must begin, and soon, our efforts for the gradual replacement of dangerous substances.

The United Kingdom will not be required to suspend the licences granted to American companies who provide for gradual replacement.