以下为句子列表：
英文: Abstract: Mechanical seal is the key part of submersible sewage pump, the reliability of it decide the submersible sewage pump life.
中文: 文摘:作为潜水污水泵关键部件的机械密封，其可靠性决定潜水污水泵的使用寿命。
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英文: Based on the analysis of the mechanical seal construction and defects, supply one kind high efficiency, reliable mechanical seal for sewage pump use, which is simple in construction, long life in use, stability in work, easy in maintenance.
中文: 该文在分析潜水污水泵中常用的机械密封及其不足之处的基础上，介绍了一种在潜水污水泵中使用的高效可靠的机械密封，该密封结构简单，使用寿命长，工作稳定，便于维修保养。
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英文: ZW serial self-priming and non-block sewage pump is a new structure product which is developed on base of reaping study of domestic and foreign similar technology.
中文: ZW系列自吸式无堵塞排污泵是在反复研究国内外同类技术的基础上开发成功的一种结构新颖的产品.
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