The "combining date" refers to the date on which the combining party actually obtains control on the combined party.

合并日，是指合并方实际取得对被合并方控制权的日期。

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Article 6the assets and liabilities that the combining party obtains in a business combination shall be measured on the basis of their carrying amount in the combined party on the combining date.

第六条合并方在企业合并中取得的资产和负债，应当按照合并日在被合并方的账面价值计量。

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Party committees at all levels function on the principle of combining collective leadership with individual responsibility based on division of work.

党的各级委员会实行集体领导和个人分工负责相结合的制度。

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By combining together they created a party dedicated to change.

BBC: News | UK Politics | Margaret McDonagh's speech

Diana Smith, from the town's Labour Party, said pressure groups would benefit from combining resources.

BBC: Stafford Hospital campaigns 'need to combine'

Take it a bit further by combining the information in your internal systems with data from social profiles and third-party data services to gain real insight into your prospects and customers.

FORBES: Forewarned is Forearmed: Understand your Customer before the Sales Relationship Starts