以下为句子列表：
英文: Life is the main factor restricting air valve and spring-loaded valves quality, the general long-term continuous operation of the compressors to life 80 hours; For mobile, short-term or intermittent operation of compressors, may require slightly more.
中文: 限制气阀寿命的主要因素是阀片及弹簧质量，一般对长期连续运转的压缩机，希望寿命达8000小时以上；对移动式、短期或间歇运转的压缩机，要求可稍低些。
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