| 单词 | step up |
| 释义 | step upphrasal verb See full dictionary entry for stepIf you step up something, you increase it or increase its intensity. He urged donors to step up their efforts to send aid to the region. [VERB PARTICLE noun] Security is being stepped up to deal with the increase in violence. [VERB PARTICLE noun (not pronoun)] There are reports of stepped-up fighting at the border. [VERB-ed PARTICLE] [Also VERB noun PARTICLE]step up in British Englishverb (adverb) informal 1. (transitive) to increase or raise by stages; accelerate 2. (intransitive) to make progress or effect an advancement; be promoted 3. step up to the plate adjective step-up (prenominal) 4. (of a transformer) increasing a low voltage applied to the primary winding to a higher voltage on the secondary winding Compare step down (sense 4) 5. informal involving a rise by stages noun step-up 6. informal an increment in quantity, size, etc step-up in British English (ˈstɛpˌʌp) adjective 1. (of a transformer) increasing a low voltage applied to the primary winding to a highervoltage on the secondary winding In a step-up transformer, the primary coil has fewer turns than the secondary. 2. informal involving a rise by stages High dose corticosteroids are used in the step-up phase of treatment. noun 3. informal an increment in quantity, size, etc the gradual step-up of dosage step up in American English1. to go or come near; approach 2. to advance or progress 3. US to increase or raise, as in rate, by or as by one or more steps, or degrees step-up in American English (ˈstɛpˌʌp) adjective 1. that steps up, or increases ; specif.,a. designating a transformer in which the output voltage is greater than the input voltage b. designating a gear that increases the speed noun 2. an increase, as in amount, intensity, etc. step-up in Electrical Engineering (stɛp ʌp) adjective (Electrical engineering: Electrical power, Transformers) step-downA step-up transformer increases a low voltage applied to the primary winding to a higher voltageon the secondary winding. Step-up transformers are used at electric power generating plants to develop very high voltages. Step-up transformers are large expensive inductive transformers capable of converting lowgenerator voltage into the operating voltage of the utility grid to inject energyinto the grid system. A step-up transformer increases a low voltage applied to the primary winding to a higher voltageon the secondary winding. Examples of 'step up' in a sentence |
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