航海航天英语词汇大全第1067页 ... economical节约的经济上的 economiclife经济使用寿命 economicsofshipbuilding造船经济学 ...
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在经济低迷时期，企业推迟购买服务器以节省成本，延长了产品的更换周期。服务器的使用寿命通常为5年左右。
Businesses had deferred purchases of servers during the economic down times to save costs, extending the replacement cycle for products that tend to have a working lifespan of about five years.
而且叶片和发电机的使用寿命增加了——这是又一项经济效益和开支节省。
Further benefits and savings come from increasing the life of the blades and the generator itself.
做好维修保养是延长使用寿命，降低费用，提高经济效益的重要途径，为此请用户注意。
To make maintaining is the key methods to prolong the machine's usage life, reduce charges and improve the economic benefits. Please note.
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