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| 投资回收期 | |||
| 偿还期 | |||
| 回收期 | |||
| 资本回收期 | |||
| 偿付期; 支付期 | |||
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| 投资回收年限某一工程自投产之日起,用逐年净效益收人还清工程投资所需的年数 | |||
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