The number of lowly-rated CCC issuers has almost tripled over the past 21 years.

较低等级CCC级发行人的数量在过去21年里几乎增加了两倍。

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Greece in turn would pass on about 20% of the original bonds' value (or 30% of the amount being rolled over) to a special-purpose vehicle (SPV) that would buy AAA-rated bonds maturing in 30 years.

希腊方面则把原始债券价值的大约20%(或者是展期债券总价值的30%)转移给一个特殊目的公司(SPV)，这个公司将购买AAA级的30年到期债券。

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Long Using Life: under the rated temperature and pressure, PE pipes may be used for over 50 years.

长久的使用寿命：在额定温度、压力状况下，PE管道可安全使用50年以上。

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