供应商与CKY检验员共同提取检测样件；
Suppliers randomly pick out some parts for inspection together with CKY receiving inspectors.
这些函数将共同过滤或提取文档数据，或者有效利用它们之间的关系。
These functions work together to filter or extract data from your documents or exploit relationships among them quite efficiently.
有经验的程序员就会在这个时候指出重新整理要素的时候到了，即，将系统的职责置于它们正确的层并且提取共同的功能性。
It is at this point that the seasoned programmer would tell you it's time to refactor, that is, to place the responsibilities of a system at their correct level and abstract out common functionality.
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