downscale protection是什么意思，downscale protection的翻译，downscale protection音标、读音、用法和例句

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downscale protection是什么意思，downscale protection的翻译，downscale protection音标、读音、用法和例句_淳朴汉英词典

downscale protection

基本解释

专业释义

土木建筑工程