新产品和工程变更的评估及相应措施的实施。

New product and ECN evaluation and relevant solution implement.

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编制评估承包商投标书的文件，并提供其它与工程变更通知或施工投标书相关的服务。

Preparing documents evaluating Contractor's proposals, a nd providing other services in connection with Change Orders or Construction proposals.

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