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单词 machine tool
释义

machine tool


machine tool

n. A power-driven tool, such as a lathe, used for machining.
ma·chine′-tooled′ (-to͞old′) adj.

machine tool

n (Mechanical Engineering) a power-driven machine, such as a lathe, miller, or grinder, that is used for cutting, shaping, and finishing metals or other materials maˈchine-ˌtooled adj

machine′ tool`


n. a machine, as a lathe, used for shaping of metal and other substances. [1860–65] machine′-tooled`, adj.
Thesaurus
Noun1.machine tool - a powered machine for cutting or shaping or finishing metals or other materialsmachine tool - a powered machine for cutting or shaping or finishing metals or other materialsdrill press - a machine tool with a separate, upright stand; an electric drill is pressed into the work automatically or with a hand levergrinder - a machine tool that polishes metalmachine - any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasksshaping machine, shaper - a machine tool for shaping metal or wood
Translations
机床

machine

(məˈʃiːn) noun1. a working arrangement of wheels, levers or other parts, driven eg by human power, electricity etc, or operating electronically, producing power and/or motion for a particular purpose. a sewing-machine. 機器 机械2. a vehicle, especially a motorbike. That's a fine machine you have! 車輛(尤指摩托車) 机动车辆(尤指摩托车) verb1. to shape, make or finish with a power-driven tool. The articles are machined to a smooth finish. 機械加工 用机械加工,用车床加工 2. to sew with a sewing-machine. You should machine the seams. 用縫紉機車縫 用缝纫机缝衣maˈchinery noun1. machines in general. Many products are made by machinery rather than by hand. 機械 机械2. the workings or processes. the machinery of government. 機構,機制 机构maˈchinist noun a person skilled in the use of machines, eg a sewing-machine, or electrical tools. She's a machinist in a clothes factory. 機械師 机械师maˈchine-gun noun an automatic gun that fires very rapidly. 機關槍 机关枪 verbHe machine-gunned a crowd of defenceless villagers. 以機關槍射擊 以机关枪射击machine tool a power-driven machine that shapes metal, wood, or plastics by cutting, pressing, or drilling. 工具機 机床
machinery does not have a plural.

machine tool


machine tool,

power-operated tool used for finishing or shaping metal parts, especially parts of other machines. An establishment that is equipped with such tools and specializes in such work is known as a machine shop. Machine tools operate by removing material from the workpiece, much as a sculptor works. Basic machining operations are: (1) turning, the shaping of a piece having a cylindrical or conical external contour; (2) facing, the shaping of a flat circular surface; (3) milling, the shaping of a flat or contoured surface; (4) drilling, the formation of a cylindrical hole in a workpiece; (5) boring, the finishing of an existing cylindrical hole, as one formed by drilling; (6) broaching, the production of a desired contour in a surface; (7) threading, the cutting of an external screw thread; and (8) tapping, the cutting of an internal screw thread. In addition there are operations such as sawing, grinding, gear cutting, polishing, buffing, and honing. The tools themselves vary in size from hand-held devices that can be used for drilling and grinding to large stationary tools that perform a number of operations. Many machine tools have a name that indicates their principal function, e.g., drill press, broach machine, milling machine, and jig borer. The lathelathe
, machine tool for holding and turning metal, wood, plastic, or other material against a cutting tool to form a cylindrical product or part. It also drills, bores, polishes, grinds, makes threads, and performs other operations.
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 can perform turning, facing, threading, drilling, and other operations. In order to withstand the great heat that this work generates, the materials used in machine tools must be extremely hard and durable. Thus, their working surfaces are made of such substances as high-speed steels, sintered carbides, and diamonds. To help dissipate the heat, the area of contact between the working surface and the workpiece is usually lubricated with a fluid that may also improve the finish of the workpiece's surface. Modern machine tools are often numerically or computer controlled; where a human operator can be distracted, and is limited by the speed of human reflexes, a numerically controlled machine is more reliable and accurate. See boring millboring mill,
machine tool used to increase the size of a hole previously made in a workpiece, usually with the purpose of obtaining a required degree of finish and accuracy in the final hole.
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machine tool

[mə′shēn ‚tül] (mechanical engineering) A stationary power-driven machine for the shaping, cutting, turning, boring, drilling, grinding, or polishing of solid parts, especially metals.

machine tool

a power-driven machine, such as a lathe, miller, or grinder, that is used for cutting, shaping, and finishing metals or other materials
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machine tool


  • noun

Words related to machine tool

noun a powered machine for cutting or shaping or finishing metals or other materials

Related Words

  • drill press
  • grinder
  • machine
  • shaping machine
  • shaper
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