redeemable bonds

基本解释

The bonds, which were introduced in 1956, are in units of one pound and are redeemable at face value on demand .
這種債券始於1956年，以一英鎊爲單位，需要時可按麪值兌現。
translation-dictionary.net
Perpetual Bond A bond with no maturity date. Perpetual bonds are not redeemable, instead they pay a steady stream of interest forever.
永久債券不設到期日的債券。永久債券不可贖廻，但可提供永久的利息收入。
Its coupon bonds is priced by general Monte Carlo simulation, and the valuation produced with its redeemable and callable features are determined by least square Monte Carlo simulation.
其中，該産品的附息債券部分運用普通矇特卡羅模擬方法進行定價，而可提前贖廻和可提前廻售部分的價值擬運用改進的最小二乘矇特卡羅模擬方法進行定價。

Although the stamps did not collect interest, they were frequently redeemable for war bonds of a value equal to the contributed stamps.
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