Party B shall retain the right to trace back the product quality, if quality accident happens while Part B is using the product of Party A, Party B shall have the right to trace back.

乙方保有产品质量追溯的权利，当乙方在使用甲方产品的过程中，有质量事故时，乙方有追溯的权利。

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B. Trace all amounts on the expense reports to the designated general ledger account to ensure accurate Posting.

b将开支报告上的所有金额追踪至指定的总帐，以确保入帐的准确性。

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Atomic absorption spectra showed that APP-A and APP-B contained some trace elements which were healthful to organism.

原子吸收光谱分析表明，APP含多种对机体有益的微量元素。

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Roberts is a director at the London-based property and planning consultancy Turnberry Consulting, and in his latest book, Racecourse Architecture, he and co-author Isabelle Taylor trace the history of race courses, beginning with the Circus Maximus and the first century B.

FORBES: Building A Better Racetrack Is Not A Losing Bet

Mel B's Hot could enter the charts no higher than number 28, then disappeared without a trace.

BBC: Emma Bunton