disc or short cylinder fitting closely within tube in which it moves up and down against liquid or gas. Sliding, cylindrical piece moved by fuel pressure.

Device controlling the supply of fuel to an engine. To put your hands round someone's neck and squeeze.

in past.

machine converting power into motion. Machines that changes energy into mechanical motion.

System of connections. connect as network.

act or process bringing change. Exchanges of one set of clothes for another. To go from one train, bus, etc. and go to another.

in accordance with what is generally done.

flowing naturally or supplied to building through pipes and taps. The act of moving your legs to move quickly. To move your legs faster than walking.

person who is very knowledgeable about or skilful in particular area. Skillful people with special knowledge.

electric motor or other device which moves or rotates in series of small discrete steps. A horse trained to lift its feet high off the ground while walking or trotting.

electronic device for storing and processing data.

having components such as microchips.

Being more smooth or flat than. device or substance used to give something flat, regular surface or appearance.

Concerning cars.

Having many and various things. pipe or chamber with several openings.