以下为句子列表：
英文: Phosphates and sodium nitrate are used for the sequestration of insoluble calcium or magnesium salts, while the task of removing mineral deposits from stainless steel surfaces is facilitated by the use of acid solutions, usually solutions of nitric or pho
中文: 磷酸钠及硝酸钠用于隔离不能溶解的钙盐或镁盐，而从不锈钢表面去除沉积的无机物通常使用酸溶液，一般是用含氮酸或磷酸溶液。
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英文: The changes of boiling point of the brine with sodium nitrate obtained front the process of producing sodium nit rate from the sodium nitrate ore in Xinjiang Lop Nur were systematically stud ed under different composition and different pressures.
中文: 摘要本文系统研究了新疆罗布泊硝酸钠矿生产硝酸钠过程中获得的含硝酸钠卤水的沸点在不同组成、不同压力下的变化。
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