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The stability of a dynamic dilution system for Unsymmetric dimethylhydrazine is studied by spectrophotometric method.

采用分光光度法研究了偏二甲肼动态配气系统的稳定性.

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Weakness of trace impouring imprecisely was avoided by mixing UDMH and internal standard solution.

用内标与偏二甲肼混合样品,避免了微量进样不准确的缺陷.

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