“economic service life”的概念、定义、翻译、参考文献-科学参考

单词	economic service life
释义	economic service life Encyclopedia 工学工程经济学释 economic service life经济寿命资产从投入使用开始，随着使用价值的降低和维护费用的升高，导致继续使用该资产在经济上不再合理而被更新所经历的时间，即资产的等额年总成本（包括购置成本和运营成本）最低，或等额年净收益最高的期限。经济寿命是由有形磨损和无形磨损共同决定的，通常小于资产的自然寿命。
随便看	ellipsometry ellipsometry in polymer film elliptic elliptic aberration elliptic adjoint orbit elliptical elliptical anagalactic nebula elliptical-clad fiber elliptical co-ordinates elliptical cylindrical cavity elliptical extragalactic nebula elliptical galaxy elliptically contoured distribution elliptically contoured distribution family elliptically curved oval elliptically polarized light elliptically polarized radiation elliptically polarized wave elliptical motion elliptical nebula elliptical orbit elliptic alpha-function elliptical polarization elliptical projection elliptical radio galaxy

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