这些公司公布自己目前对各期票据所付的利率。
These companies announce the rates they are currently paying for various maturities.
不定期票可以很好地利用航班资源，提高航空公司收益。
Aperiodic ticket can make use of flight's seats which bring out revenue for airline.
不定期票可以很好地利用航班资源，提高航空公司收益。
Aperiodic ticket can make use of flight's seats which bring out revenue for airline.
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