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.
Shortcut Keys. Shortcut keys (sometimes erroneously referred to as accelerator keys or hot keys) are keys or key combinations that users can press for quick access to actions. Shortcut keys differ from access keys. Access keys are assigned to every control so that the user can use the keyboard to move through the UI quickly.