direct-firing system
1Direct distance dialing — (DDD) or direct dial is a telecommunications term for a network provided service feature in which a call originator may, without operator assistance, call any other user outside the local calling area. DDD requires more digits in the number… …
2DIRECT — For other uses, see Direct (disambiguation). For the rockets proposed as part of the DIRECT architecture, see Jupiter (rocket family). DIRECT is a proposed alternative heavy lift launch vehicle architecture supporting NASA s Vision for Space… …
3Firing order — The firing order is the sequence of power delivery of each cylinder in a multi cylinder reciprocating engine. This is achieved by sparking of the spark plugs in a gasoline engine in the correct order, or by the sequence of fuel injection in a… …
4Direct action (military) — For other uses, see Direct action (disambiguation). In the context of military special operations, direct action (DA) consists of: Short duration strikes and other small scale offensive actions conducted as a special operation in hostile, denied …
5ignition system — the system in an internal combustion engine that produces the spark to ignite the mixture of fuel and air: includes the battery, ignition coil, distributor, spark plugs, and associated switches and wiring. [1900 05] * * * In a gasoline engine,… …
6Execution by firing squad — Firing squad and shot at dawn redirect here. For other uses, see Firing squad (disambiguation). For the UK memorial, see Shot at Dawn Memorial. Part of a series on Capital punishment …
7nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …
8nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …
9Ignition system — For other uses, see Ignition system (disambiguation). An ignition system is a system for igniting a fuel air mixture. Ignition systems are well known in the field of internal combustion engines such as those used in petrol (gasoline) engines used …
10Coast Artillery fire control system — A conceptual diagram of the flow of fire control data in the Coast Artillery (in 1940). The set forward point of the target was generated by using the plotting board (1). This position was then corrected for factors affecting range and azimuth… …
