名词短语
中文翻译：有效生命长度
同义词：
["有效寿命，生命周期，使用寿命例句：1. The company's product line is designed to provide a productive life length for its customers.（该公司的产品系列旨在为顾客提供有效的使用时长。）"]
例句：
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1. The company's product line is designed to provide a productive life length for its customers.
该公司的产品系列旨在为顾客提供有效的使用时长。
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2. The researcher found that the new technology could significantly increase the productive life length of the equipment.
研究者发现，这项新技术可以显著提高设备的使用时长。
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3.The company has invested heavily in research and development to extend the productive life length of its products.
公司大力投资研发，以延长产品的使用寿命。