单词	ratchet
释义	ratchet1 nounratchet2 verb ratchetratch‧et1 /ˈrætʃɪt/ noun [countable] Word Origin WORD ORIGINratchet1 Origin: 1600-1700 French rochet, from Old French rocquet ‘point of a spear’ Examples EXAMPLES FROM THE CORPUS A nylon webbing strap is wrapped around the frame and is then tightened using a ratchet action of the clamp head. Another sinister plot; another twist of the federal ratchet. By the use of the ratchet, the investors agree to share success with the management. Drive direction can be changed but the ratchet can't be locked out: operation was positive but fiddly. Just as a ratchet turns easily one way but can not turn back, so genetic defects inevitably accumulate. The quick turnstiles metered the tokens with a noise of ratchets. There is a sort of upward ratchet effect where each achievement level becomes the baseline for the next change. word sets WORD SETS► Mechanical ball bearing, nounbelt, nouncog, nouncombustion chamber, nounconveyor belt, nouncoolant, nouncooling system, nouncrank, verbdifferential, noundisengage, verbdismantle, verbdrive, nounfour-stroke engine, nounfuel cell, nounfulcrum, noungear, nounheat pump, nounhydraulic, adjectiveinertia, nounmechanical, adjectivemechanical engineering, nounmill, nounmillstone, nounmillwheel, nounmomentum, nounmotive, adjectiveneutral, nounnuclear reactor, nounoil pan, nounpivot, nounpropulsion, nounpulley, nounpump, nounrace, verbratchet, nounreactor, nounregulate, verbretract, verbrev, verbrev, nounrotor, nounselector, nounstarter motor, nounstress, nounstressed, adjectivestrip, verbsump, nounsupercharged, adjectivetemplate, nountop gear, nountorque, nountwo-stroke, adjectiveuniversal joint, nounvalve, nounwheel, nounwinch, nounwindlass, noun a machine part consisting of a wheel or bar with teeth on it, which allows movement in only one direction ratchet1 nounratchet2 verb ratchetratchet2 verb Verb Table VERB TABLE ratchet Simple Form Present I, you, we, they ratchet he, she, it ratchets Past I, you, he, she, it, we, they ratcheted Present perfect I, you, we, they have ratcheted he, she, it has ratcheted Past perfect I, you, he, she, it, we, they had ratcheted Future I, you, he, she, it, we, they will ratchet Future perfect I, you, he, she, it, we, they will have ratcheted Continuous Form Present I am ratcheting he, she, it is ratcheting you, we, they are ratcheting Past I, he, she, it was ratcheting you, we, they were ratcheting Present perfect I, you, we, they have been ratcheting he, she, it has been ratcheting Past perfect I, you, he, she, it, we, they had been ratcheting Future I, you, he, she, it, we, they will be ratcheting Future perfect I, you, he, she, it, we, they will have been ratcheting Examples EXAMPLES FROM THE CORPUS And all the time Banks keeps ratcheting up the suspense. Netscape Communications will announce new Internet products for businesses today, ratcheting up the pressure on Microsoft. Raising the minimum wage would ratchet up real incomes where disparities are at their worst and need is most clustered. Collocations COLLOCATIONS FROM THE CORPUSADVERB► up · And all the time Banks keeps ratcheting up the suspense.· Raising the minimum wage would ratchet up real incomes where disparities are at their worst and need is most clustered.· Netscape Communications will announce new Internet products for businesses today, ratcheting up the pressure on Microsoft. ratchet up phrasal verb to increase something by a small amount, especially after a series of increases, or to increase in this wayratchet something ↔ up Raising the minimum wage would ratchet up real incomes in general. The debate will ratchet up a notch on Wednesday when the Commission publishes its report.
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