| 1. | The ultraviolet absorbance of the extraction liquid didn ' t relate to the sample weight or the extracted time 化探样萃取液的紫外吸光度与萃取时间及称样量关系不大。 |
| 2. | The sample weight , the microwave power , pressure and time used for digesting the sample were studied in detail and optimized 在样品处理中也采用了常规溶样方法,并分别用两种样品处理方法测定石油焦中的硅。 |
| 3. | The number of individuals in different demographic groups who would have provided usable information if response rates were equivalent . see sample weighting 如果回复率相等,那么会提供有用信息的具有不同人口统计特征的个人 |
| 4. | The process of assigning mathematical weights in an attempt to correct over or underrepresentation of some groups in the unweighted in - tab sample . see sample weighting 分配数学权重的过程.旨在修正未加权样本对某些人群代表过度或代表不足的偏差 |
| 5. | By using the order with multiples of sample weights , the result of decision - making not only shows the magnitude of attributes , but also shows the growth of attributes 进一步,我们将它抽象成权重信息不完全的多属性决策问题,并提出了一种简便、实用的决策方法。 |
| 6. | Determination of end carboxyl content in pet chip using photometric method was discussed , the optimiza tion of measuring condition and parameters such as sample weight , concentration of titrant , blank of solvent were stud ied 论述采用光度法测定聚酯切片的端羧基,对称样量、滴定剂的浓度、溶剂的空白等测试条件和参数进行优化选择。 |
| 7. | By defining new variables , we transformed the non - linear models into the linear model without changing the optimal solution . an indicator is also presented to assist decision - maker to articulate new preference that precise values of sample weights do not need to be provided by dm 第六章针对这一问题,提出如果让时间样本权重成比例地增加,就能够使决策结果既能反映指标值的大小,又能反映指标值的增长。 |
| 8. | It was proved that the method was easy - to - operate and samples produced were homogeneous in quartz content , controllable in sample weight and compliant in particle size distribution with that collected from workplaces . the samples can be used in round - robin tests on quartz determination between laboratories and in verification of different methods for quality control 经测试表明:该方法操作简便,制备的呼吸性粉尘样品石英含量均匀,样品质量可控制,粉尘粒度分布和现场样品一致,适用于实验室间或不同方法之间的石英含量比较性研究和质量控制。 |