Methods: To establish the quality control methods and optimize the extractive processes by orthogonal design L9 (34) and correct solvent.

方法：通过溶剂选择和正交设计L9（34），筛选合理的提取工艺，并制定质量控制方法。

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Conclusion: this method is easy to operate with precise results, which establishes a reliable method for the control of residue solvent of cefotaxime sodium.

结论：本法操作简便，结果准确，为有效控制头孢噻肟钠的残留溶媒建立了可靠的方法。

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When the level has stabilized the solvent feed to be regenerated should be cascaded to the level control.

当液位稳定后，要再生的溶剂进料应串接到液位控制？

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You'll remember, that agreement said the emergency bailout facility, the EFSF, would henceforth play the role of "European Monetary Fund", able to intervene in markets to keep borrowing costs for solvent governments under control.

BBC: Central banks and the 'spirit of 2008'