| engine reamer | An engine-mounted spirally-bladed instrument, used for enlarging the root canals of teeth. (05 Mar 2000) |
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| reamer | A rotating finishing or drilling tool used to shape or enlarge a hole. Origin: A.S. Ryman, to widen (05 Mar 2000) |
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| intramedullary reamer | A rasp used for shaping the intramedullary portion of the metaphysis prior to the insertion of an appliance or a prosthesis. (05 Mar 2000) |
| gas engine | A piston engine that uses gaseous fuel rather than gasoline. Fuel and air are mixed before they enter cylinders; ignition occurs with a spark. (05 Dec 1998) |
| steam engine | An engine moved by steam. In its most common forms its essential parts are a piston, a cylinder, and a valve gear. The piston works in the cylinder, to which steam is admitted by the action of the valve gear, and communicates motion to the machinery to be actuated. Steam engines are thus classified: 1. According to the wat the steam is used or applied, as condencing, noncondencing, compound, double-acting, single-acting, triple-expansion, etc. 2. According to the motion of the piston, as reciprocating, rotary, etc. 3. According to the motion imparted by the engine, as rotative and nonrotative. 4. According to the arrangement of the engine, as stationary, portable, and semiportable engines, beam engine, oscillating engine, direct-acting and back-acting engines, etc. 5. According to their uses, as portable, marine, locomotive, pumping, blowing, winding, and stationary engines. Locomotive and portable engines are usually high-pressure, noncondencing, rotative, and direct-acting. Marine engines are high or low pressure, rotative, and generally condencing, double-acting, and compound. Paddle engines are generally beam, sidelever, oscillating, or direct-acting. Screw engines are generally direct-acting, back-acting, or oscillating. Stationary engines belong to various classes, but are generally rotative. A horizontal or inclined stationary steam engine is called a left-hand or a right-hand engine when the crank shaft and driving pulley are on the left-hand side, or the right-hand side, respectively, or the engine, to a person looking at them from the cylinder, and is said to run forward or backward when the crank traverses the upward half, or lower half, respectively, of its path, while the piston rod makes its stroke outward from the cylinder. A marine engine, or the engine of a locomotive, is said to run forward when its motion is such as would propel the vessel or the locomotive forward. Steam engines are further classified as double-cylinder, disk, semicylinder, trunk engines, etc. Machines, such as cranes, hammers, etc, of which the steam engine forms a part, are called steam cranes, steam hammers, etc. Back-acting, or Back-action, steam engine, a steam engine in which the motion is transmitted backward from the crosshead to a crank which is between the crosshead and the cylinder, or beyond the cylinder. Portable steam engine, a steam engine combined with, and attached to, a boiler which is mounted on wheels so as to admit of easy transportation; used for driving machinery in the field, as trashing machines, draining pumps, etc. Semiportable steam engine, a steam engine combined with, and attached to, a steam boiler, but not mounted on wheels. Source: Websters Dictionary (01 Mar 1998) |
| diesel engine | A compression-ignition piston engine in which fuel is ignited by injecting it into air that has been heated (unlike a spark-ignition engine). (05 Dec 1998) |
| engine | 1. (Pronounced, in this sense,) Natural capacity; ability; skill. "A man hath sapiences three, Memory, engine, and intellect also." (Chaucer) 2. Anything used to effect a purpose; any device or contrivance; an agent. "You see the ways the fisherman doth take To catch the fish; what engines doth he make?" (Bunyan) "Their promises, enticements, oaths, tokens, and all these engines of lust." (Shak) 3. Any instrument by which any effect is produced; especially, an instrument or machine of war or torture. "Terrible engines of death." 4. <machinery> A compound machine by which any physical power is applied to produce a given physical effect. Engine driver, one who manages an engine; specifically, the engineer of a locomotive. Engine lathe. A method of ornamentation by means of a rose engine. The term engine is more commonly applied to massive machines, or to those giving power, or which produce some difficult result. Engines, as motors, are distinguished according to the source of power, as steam engine, air engine, electromagnetic engine; or the purpose on account of which the power is applied, as fire engine, pumping engine, locomotive engine; or some peculiarity of construction or operation, as single-acting or double-acting engine, high-pressure or low-pressure engine, condensing engine, etc. Origin: F. Engin skill, machine, engine, L. Ingenium natural capacity, invention; in in + the root of gignere to produce. See Genius, and cf. Ingenious, Gin a snare. Source: Websters Dictionary (01 Mar 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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