Check the conformity of all the code numbers.

核对所有号码一致。

WBS Code numbers: The WBS code number is a unique identifier for each element of the WBS and should be such that it can be easily expanded to accommodate any future revisions to the WBS.

WBS编码：WBS编码是其每个元素的独一无二的识别码。 编码应当易于扩展，以适应未来的版本更新。