词语一级标准
解释primary standard
primary standard〔名词〕基本标准,原标准详细»
primary standard〔名词〕原始标准,一级标准,主要标准详细»
primary standard〔名词〕一次标准详细»
primary standard〔名词〕一级标准详细»
primary standard〔名词〕原始标准详细»
primary standard〔名词〕基本标准,一级标准详细»
一级标准primary standard详细»