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1·The structure matrix was applied to forecast chromatograph retention index of alkane.

将结构矩阵应用于链烷烃色谱保留指数的预测。

2·A method to check mistakes in the database is developed by means of the relationship between retention index and column temperature, and so on.

并针对录入数据很容易引入错误而提出利用保留指数与柱温的关系和同系线性规律等对数据库进行查错。

3·Objective To study the value of dual-phase ~(18)F -FDG PET imaging, standardized uptake value(SUV) and retention index(RI%) in the diagnosis of malignancy.

目的探讨双时相~（18）F-FDG PET显像图像、标准摄取值（SUV）及储留指数（RI%）在恶性肿瘤诊断中的价值。

4·The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation.

并从色谱热力学函数分析了保留指数随温度变化规律的主要原因是由于在色谱分离过程中不同的熵变和焓变所造成的。

5·The retention time of cargo operations is a comprehensive index to measure the goods vehicle operating efficiency and the transport organization efficiency.

货物作业停留时间是衡量货车使用效率和运输组织效率的一项综合性指标。