以下为句子列表：
英文: 4 High lead and high tin copper alloy powders: 24-1，7-7-3，10-10 etc. Apparent density and particle size distribution is adjustable.
中文: 轴瓦材料用的高铅、高锡铜合金粉：24-1，7-7-3，10-10等；松比可调，粒度分布可调。
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英文: Abstract: This paper analyzed the fractal features of particle size distribution (PSD) of soils in China.
中文: 文摘:以土壤颗粒组成数据为基础，分析了我国土壤颗粒组成的分形维数。
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英文: It was proved that the method was easy-to-operate and samples produced were homogeneous in quartz content, controllable in sample weight and compliant in particle size distribution with that collected from workplaces.The samples can be used in round-robin
中文: 经测试表明：该方法操作简便，制备的呼吸性粉尘样品石英含量均匀，样品质量可控制，粉尘粒度分布和现场样品一致，适用于实验室间或不同方法之间的石英含量比较性研究和质量控制。
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英文: Manufacturing pigments with the same shade but different particle size distribution and grinding systems results in a wide range of products that are easy to use in most fields of application.
中文: 相同色相的氧化铁颜料由于不同的粒径和不同的研磨工艺，会带来不同的着色效果，以满足广泛的应用要求。
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英文: Precisely particle size distribution makes a precision processed surface without any scratch.
中文: 非常设计的粒度分布，可得到高精度的被加工表面，无划伤。
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