| 单词 | simple machine |
| 释义 | simple machine (once / 134311 pages) n WORD FAMILY simple machine: simple machines USAGE EXAMPLESFor example, only 29% of students “sometimes” or “often” work with simple machines. Science Magazine(Nov 01, 2016) “It’s really a great piece to teach kids about science, because what makes it run is simple machines.” Washington Times(Oct 15, 2016) They watch lectures in which interrelated organ systems are displayed as simple machines. Wall Street Journal(May 08, 2016) n a device for overcoming resistance at one point by applying force at some other point Syn|Hypo|Hyper machine inclined plane a simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal levera simple machine that gives a mechanical advantage when given a fulcrum block, pulley, pulley block, pulley-blocka simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope wheela simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines) balance, balance wheela wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat bicycle wheelthe wheel of a bicycle bollock, bullock blocka pulley-block at the head of a topmast buffing wheela wheel that is covered with soft material cartwheela wheel that has wooden spokes and a metal rim car wheela wheel that has a tire and rim and hubcap; used to propel the car daisy print wheel, daisy wheela wheel around which is a set of print characters that make a typing impression on paper driving wheela wheel that drives a motor vehicle (transforms torque into a tractive force) fairleada pulley-block used to guide a rope forming part of a ship's rigging to avoid chafing cogwheel, gear, gear wheel, geared wheela toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion emery wheel, grinding wheela wheel composed of abrasive material; used for grinding handwheela wheel worked by hand idle pulley, idle wheel, idler pulleya pulley on a shaft that presses against a guide belt to guide or tighten it nosewheela wheel located under the nose of an airplane that is part of the plane's landing gear paddle wheel, paddlewheela large wheel fitted with paddles and driven by an engine in order to propel a boat pinwheela wheel that has numerous pins that are set at right angles to its rim potter's wheela horizontal rotating wheel holding the clay being shaped by a potter incline, rampan inclined surface connecting two levels ratchet wheeltoothed wheel held in place by a pawl or detent and turned by a lever rollera small wheel without spokes (as on a roller skate) roulette, toothed wheela wheel with teeth for making a row of perforations rowela small spiked wheel at the end of a spur screwa simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole sprocket, sprocket wheelthin wheel with teeth that engage with a chain trundlesmall wheel or roller wagon wheela wheel of a wagon water wheel, waterwheela wheel that rotates by direct action of water; a simple turbine water wheel, waterwheela wheel with buckets attached to its rim; raises water from a stream or pond wedgesomething solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them mechanical device mechanism consisting of a device that works on mechanical principles |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。