Transaction value of imported goods shall conform to the following terms and conditions.

进口货物的成交价格应当符合下列条件。

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Transaction value of export goods refers to the total amount of money charged by the seller to the buyer directly or indirectly for the exportation of the goods at the time of exportation.

出口货物的成交价格，是指该货物出口时卖方为出口该货物应当向买方直接收取和间接收取的价款总额。

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They were uncertain of the total value of the transaction.

他们不清楚这笔交易的总额。

《柯林斯英汉双解大词典》

In a pawn transaction, the customer gets a short-term loan of about fifty to seventy-five percent of the value of an item.

VOA: special.2011.04.18

Prices are still going up especially in the inland cities but in April the transaction value of homes fell 21.3 % across the country as compared to the preceding month.

FORBES: Is The Chinese Economy Slowing?

It appears that an exchange of money or at least a transaction of a thing of value did occur between CAIR and the Interests Section of Iran.

CENTERFORSECURITYPOLICY: Has CAIR violated the Iranian Assets Control Regulations?

Along with the explosion in mobile technology to support commerce, startups like LevelUp have begun disrupting the payments market by offering free payment processing in return for paid loyalty and marketing services, showing that we are quickly moving into an age where the value of payment data exceeds the value of transaction fees.

FORBES: Mobile Payments: The Case For Choosing An Open Platform