Rubber is also now being used as a raw material in the production of solid fuel for rockets and other types of spacecraft.
Solid fuel is safer and more convenient to transport than liquid fuels, like gasoline.
As for the solid fuel model (1.1), the structure of such a blow-up singularity formation is of importance in the present higher-order model.
Risk factors for pneumonia in infants and young children and the role of solid fuel for cooking : a case-control study.
Firstly, we must have solid fuel within the purview of this programme.
We are required to ensure that, as a major purchaser of solid fuel, our purchasing does not discriminate between suppliers of fuels.
Usually solid fuel is delivered over only a short distance.
We are not prepared to extend this exceptional provision to all sales of solid fuel.