| 单词 | step up |
| 释义 | step upverb (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(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 |
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