以下为句子列表：
英文: In these methods mechanical agitation or high pressure are usually used, which cost too much energy and can't get uniform liquid droplets Membrane emulsification is one of the best methods to prepare emil1sion.
中文: 这种方法所需压力很小，形成的液滴直径均一，并能形成不同粒径的乳液，是理想的制乳方法。
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英文: Practice during the period of four years shows: (1) Settled water pond and three-stage filtration system with mechanical agitation can meet the requitments of reverse-osmosis components to the inlet water quality; (2) It must be considered in the design t
中文: 经4年的实践表明：(1)采用机械搅拌澄清池和三级过滤的系统，可以达到反渗透组件对进水水质的要求；(2)反渗透组件的脱盐率每年约降低1%～2%，在设计中必须考虑；(3)一般情况下，反渗透装置的出水应经过除碳器再送入混床；(4)混床的出力必须有足够的余量，以免影响供水。
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