开立保函及其修改的所有指示以及保函和修改本身都必须清楚、准确，且应当避免过多的细节。

All instructions for the issue of Guarantees and amendments thereto and Guarantees and amendments themselves should be clear and precise and should avoid excessive detail.

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上述两保函，即3,270,000美元的预付款保函和1,113,433美元的履约保函应以买方为受益人开立。

Down-payment guarantee on USD 3,270,000 and Performance guarantee on USD 1,113,433 shall be opened in buyer's favor.

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