还必须很好地控制给料的粒度，以减少粒度效应，使矿粒的运动主要按比重进行。
The particle size of the feed must be well controlled to reduce size effect and make the particle motion primarily density-dependent.
讨论了样品的自吸收效应，加热温度、选择性反射带和粒度以及衬底等物理条件对红外辐射光谱的影响。
The effect of sample self absorption, selective reflection, temperature, sample grain and liner on FT IR radiation spectrum are discussed.
讨论了样品的自吸收效应，加热温度、选择性反射带和粒度以及衬底等物理条件对红外辐射光谱的影响。
The effect of sample self absorption, selective reflection, temperature, sample grain and liner on FT IR radiation spectrum are discussed.
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