[問題] bid-cover ratio?

[hlcho (醒醒啊~~~)]

   之前試翻了一段金融類的文章,
   原文:

     Today's $13 billion auction of 5-year treasuries had a 4.27% yield, the
     highest in 8 years, and drew a strong $2.75 bid-cover ratio.

    裡面那個"bid-cover ratio"我找了好久都找不出合適的Chinese equivalence,
    所以只好就我的理解得出如下譯文:

    本日所拍賣的一百三十億的五年期美國國庫債券殖利率是4.27%，八年來的最高，吸
    引強勁的bid-cover ratio 達$2.75。

    囧rz~~~謝謝

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