它提供了一种方法没有对象的顺序访问聚合对象的暴漏底层的细节。
Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.
为了强化分梳作用，提高分梳质量，大连轻工业学院研制了新型单分梳板小漏底。
To enhance the combing action and qualities, Dalian Light Industrial Engineering Institute has developed a new type of single combing board's undercasing.
为了强化分梳作用，提高分梳质量，大连轻工业学院研制了新型单分梳板小漏底。
To enhance the combing action and qualities, Dalian Light Industrial Engineering Institute has developed a new type of single combing board's undercasing.
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