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- Methods Sampling weights were used as adjustments,and the Taylor series linearization technique was used to estimate the population parameter and associated variances. 方法 用抽样权重作为调整值 ,采用Taylor级数线性化技术估计总体参数及相应的方差。
- When The oxygen content is larger than the vaporized volatile,the sample weight after baking increases and makes the volatile content minus. 如果吸收氧气的量比挥发物的量多,则烘烤后试样反而增重,导致挥发物呈负数。
- 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。
- 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。
- The chair sagged down under the fat man's weight. 椅子经这胖人一坐便压弯了。
- A reliable car is worth its weight in gold. 靠得住的汽车就是无价之宝。
- The pillars have to support the weight of the roof. 这些柱子须承受屋顶的重量。
- The President swings his weight to get laws passed. 总统运用权力使法律获得通过。
- His opinion doesn't carry much weight. 他的意见没多少影响。
- Bananas are usually sold by weight. 香蕉通常按重量卖。
- The net weight of this jar of coffee is 180 grams. 这瓶咖啡净重180克。
- These fish vary in weight from 3 lb to 5 lb. 这些鱼的重量从3磅到5磅不等。
- The number of individuals in different demographic groups who would have provided usable information if response rates were equivalent. See sample weighting. 加权样本如果回复率相等,那么会提供有用信息的具有不同人口统计特征的个人。
- 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。
- The drunken man was a dead weight in my arms. 这个醉汉在我怀里死沉。
- I spent a few days sampling the literature of social science. 我花了几天时间浏览有关社会科学的文献。
- The dam burst under the weight of water. 那水坝在水的压力下决口了。
- I am afraid I have gained weight. 我想我体重增加了。
- He has put on weight since I last saw him. 自从我上次见到他以来，他又长胖了。
- He is on a diet to reduce some weight. 他正在节食以减轻体重。
