不适用、异常实物磨损（abnormal wear and tear）和技术陈旧（technological obsolescence），均是资产提前处理或变卖的重要因素。
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·2,447,543篇论文数据，部分数据来源于NoteExpress
The world's audiovisual heritage is endangered. Too much of it has already been lost through neglect of its value, chemical decay or technological obsolescence.
世界音像遗产正濒临危境，由于对其价值的无知，或由于化学腐蚀，或因为技术陈旧，我们已经失去了太多的音像遗产。
youdao
Most of what has been produced has been lost due to the ravages of time, ignorance of its value, chemical decay and technological obsolescence.
UNESCO: Communication and Information
Too much of the world's 20th century audiovisual heritage is now lost, and much more is slipping beyond recovery because of neglect, natural decay and technological obsolescence.
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