concealed pediment是什么意思，concealed pediment的翻译，concealed pediment音标、读音、用法和例句

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

concealed pediment

基本解释

专业释义

能源科学技术