释义 |
step-down AHD[stĕpʹdoun'] D.J.[ˈstepˌdaʊn]K.K.[ˈstɛpˌdaʊn]adj.(形容词)- Decreasing in stages:缩小的:在程度上逐渐减少的:a step-down gear.减速齿轮
- Electricity Serving to reduce voltage:【电学】 降低电压的:有助于减少电压的:a step-down transformer.降压变压器
n.(名词)- A reduction in amount or size.减少:在数量或尺寸上减少的
|