I don't know if they are solid or liquid fuel.

He might as well have thrown liquid fuel on a fire.

Many liquid fuels play a primary role in transportation and the economy.

Most significant is the availability and price of liquid fuel for transportation.

Many of them will expect to travel around by burning liquid fuels.

It requires explosive liquid fuel which is hard to store.

We cannot stop the technological development of what is now an alternative to liquid fuels, and perhaps the only one.

Waiting until production peaks would leave the world with a liquid fuel deficit for 20 years.

Joe cracked the control of his forward liquid fuel rockets.

Two key points discussed in his works are liquid fuels and staging.

He believed that 50 percent efficiency could be achieved with liquid fuel.

The first liquid fuels were introduced at the 1972 Munich games.

It's because there is not enough petroleum to meet the demand for liquid fuels now.

It had several advantages over liquid fuels such as gasoline.

Three stage rocket, with the upper two stages being liquid fuel.

This article is about the liquid fuel and industrial solvent.

Well, I'm still getting used to sitting on a ton of liquid fuel."

It had employed liquid fuel to power a jet thrust.

There must have been small liquid fuel tanks of some sort right behind those vents.

Before leaving the pipe, the liquid fuel is forced through a tiny hole.

A 20-second test firing of its three main liquid fuel engines is scheduled for June 13.

In addition, the technology to convert coal into liquid fuels is well established.

It will burn for a long time and, when the fire burns low, you need only add a little more liquid fuel carefully.

Here are some common liquid fuel combinations in use today:

Most commercial liquid fuel camping stoves on the market today are of this design.