平衡样本

The present balanced two-layer sample rotation system is applicable only to the monthly survey with two-stage sample designs and with small primary sampling units.

目前的平衡两层次样本轮换模式只适用于一级单元规模较小时的两阶段抽样月度调查。

In study of equational data on bipolar disorders, the application of linkage analysis was limited, but the results of else three statistical models were similar. They all suggested that the relation between DRD2P or COMT and bipolar disorders had no significance.

在平衡数据的双相情感性精神障碍家系资料致病基因位点的研究中，连锁分析的应用受到限制，而其它三种统计模型的结果一致，DRD2P和COMT基因位点与疾病的关系均无统计学意义，但随着样本含量的增大，广义估计方程表现了一定的优势。

One end is the substantial use of the third person form, the present tense and the past tense; through frequent use of the third person form as the Subject, the writers of commercial editorials are at a position of an impartial third party describing the facts in an apparently neutral manner; the past tense and the present tense are also considerably employed to further help to enhance the objectivity of the writers" presentation, for they reflect the facts and events which did take place and do stay there now. The other is the moderate employment of modal operators and Modal Adjuncts. Those of low value group and median value group form the main body of all the modal operators; instead modal operators of high value group occur least frequently, which imply writers" strong attitude.

为得到更有普遍性更可信的结论，本文作者选取了30篇商业社评作为大样本进行统计处理、描述及分析；通过对语气成分及情态修饰语的分析，探讨了在商业社评中人际功能与非人际表现的平衡；一方面是大量使用第三人称、现在时态与过去时态，另一方面是应适度采用情态算子与情态修饰语。

In a sample survey of world cities, the UN found the most unequal were in South Africa.

在一份世界城市样本调查中，联合国的工作人员发现，发展最不平衡的城市位于南非。

In a family-based study, no significant transmission disequilibrium from heterozygous parents to affected offspring was observed.

在中国三口之家的样本中，我们没有观察到有等位基因从正常的父母向患病子女的传递不平衡。

The problem that the classified accuracy is low is solved. The method is applied to the two-wheeled self-balanced robot and the experiments of the running state recognition are conducted.

将此方法应用于两轮自平衡机器人进行运行状态识别实验，当每种状态采集的独立样本数超过20个时，正确率可以达到98%以上。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。