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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非测绘专业的学生面临知识面窄，技术陈旧，操作能力较差的问题。
Non-surveying and mapping professional students face knowledge narrow, technical obsolescence, operational capacity less problems.
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。
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.
虽然某个电力公司的执行官在昨天跟我开玩笑说美国许多电站都很安全，因为他们所使用的技术太过陈旧，软件在其中几乎完全不起作用。
Although one power company executive yesterday joked to me that many plants in the U.S. would be safe because the technology they use is so old that software hardly plays any role in it at all.
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