Typically, coke-oven gas is obtained from a battery comprising a number of narrow, vertical chambers, or ovens (0.5m wide, 5m high and 12m long) built of silica brick that are separated by heating ducts, such that heat is transmitted to the coal through both sides of the chamber walls.
ISO keyboard symbol for âControlâ. In computing, a Control key is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, +); similar to the Shift key, the Control key rarely performs any function when pressed by itself.
A transponder key, by basic definition, is a device that transmits or accepts data from another device. In the case of a vehicle, the transponder key is usually found in the ignition key itself, which gives the car another level of security and allows drivers to access their cars through keyless entry.