Bill of quantities is the core of tender offer.

工程量清单是投标报价的核心。

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Item pricing is an important but difficult task in priced bill of quantities.

在工程量清单计价中，清单项目组价是其重点和难点。

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Item pricing is an important but difficult task in priced bill of quantities.

在工程量清单计价中，清单项目组价是其重点和难点。

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