Standard liquid is used to determine the liquid absorbing coefficient so that the unknown liquid density is measured.

利用标准溶液确定溶液的吸收系数，进而可以测量出未知溶液的浓度。

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Standard liquid is used to determine the liquid absorbing coefficient so that the unknown liquid density is measured.

利用标准溶液确定溶液的吸收系数，进而可以测量出未知溶液的浓度。

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