以下为句子列表：
英文: A new type filler, PTFE ladder Rasching ring is designed and used in the washing tower of anhydrous hydrofluoric acid equipment, properties of this filler is also analyzed.
中文: 摘要设计了1种新型填料―PTFE阶梯拉西环并应用在无水氢氟酸装置的洗涤塔中，分析了该填料的特性。
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英文: Before any monel part is assembled into a hydrofluoric acid valve it is acid tested to assure that it is monel.
中文: 在将任何蒙乃尔部件组装进氢氟酸阀门之前，都经过酸性检测，以确保确实是蒙乃尔材料。
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英文: Hydrofluoric acid will react with carbon steel and monel producing a fluoride buildup on the metal surfaces which can render the valve inoperable.
中文: 氢氟酸会与碳钢和蒙乃尔发生化学反应，产生氟化物，聚积在金属表面，从而致使阀门无法正常工作。
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英文: It is insoluble in water and acid, but dissolves in caustic soda and hydrofluoric acid without separation under high temperature.
中文: 不溶于水及酸，深于苛性钠、氢氟酸，受高温不分解。
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英文: Recognizing the need to continue our service beyond initial installation we have committed to the refiners and licensors that an inventory of hydrofluoric acid valves will be maintained at Pacific Valves.
中文: 我们认识到在初始安装后，还要延续我们的服务，我们已经将氢氟酸阀门的备品目录移交给需要维护美国太平洋阀门的炼油厂和发证机构。
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