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: Although samples were in a hot reflux for a long time at 85℃ in the experiment, and 5? molecular sieve of the adsorbed sample was acidized by hydrofluoric acid, the analytical method was tested to have little influence on carbon isotopic composition of th
中文: 尽管实验过程中样品经过85℃长时间加热回流及吸附样品的5?分子筛用氢氟酸酸化处理，但实验结果经仪器检测，证明该方法对正构烷烃碳同位素值影响因素不大。
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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 introduces the property of by-product fluorgypsum from hydrofluoric acid, reviewes the application of fluorgypsum at home, and predicts the developing trend and direction of comprehensive utilization fluorgypsum.
中文: 摘要对氢氟酸生产中的副产品氟石膏的性质进行了介绍，综述了氟石膏目前在我国的应用现状，并展现了氟石膏变废为宝，资源综合利用的前景。
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