Up to the present, no general formula, covering all kinds of multiple equilibrium systems of mixed acids and bases has appeared in chemical literature.

目前在化学文献中还没有一个能够包括各种混合酸碱的复杂体系的通用计算公式。

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An improved analog-digital mixed system is put forward on the bases of scheme of phase generated carrier (PGC).

分析了相位载波(PGC)技术的模拟数字混合解调方案，提出了一种改进的模拟数字混合系统。

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Romney is trying to weasel his way into the presidency, saying what he thinks people want to hear, and consistently sending mixed messages to cover all his bases.

FORBES: Mad Men Brought To Life In The Character Of Mitt Romney