1.   A ship can fire its rockets to create enough gravity to allow venting, which uses up precious fuel.

2.   He flew on while precious fuel, altitude and time dwindled.

3.   Now, the aerial refuelers have to fly from as far away as Spain, England and France, burning up precious fuel that could keep fighters flying.

4.   There must be other motives behind this attempt to rob Arizona of precious fuel.

5.   These are the tiniest of econoboxes, smaller even than the British Mini Cooper, designed for city driving and the most minimum use of precious fuel.

6.   Air Commodore David Wilby says the bombings have forced Yugoslav forces to waste precious fuel by continuously hiding their tanks and other weaponry.

7.   All this manual steering was using up precious fuel.

8.   He added, however, that the station is now maintaining its alignment using thrusters, which use precious fuel.

9.   Mir has been in a slow rolling motion since the end of January as space officials tried to save its unstable batteries and precious fuel for the re-entry.

10.   The crew will have to use precious fuel to fire thrusters to turn the station in the right direction.