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 TV Key is a mechanism for any advertiser or content owner to link consumers to specific interactive television destinations, including enhanced TV applications, from media delivered over broadcast or broadband networks TV Keys can be embedded in any video stream and can be used as an on-screen call to action.