成对

The usually paired female or hermaphroditic reproductive organ that produces ova and, in vertebrates, estrogen and progesterone.

卵巢通常成对的雌性或雌雄同体动物的生殖器官，产生卵细胞，脊椎动物的此类器官产生雌性激素和孕激素

In the case of the ovipara, such as birds and oviparous quadrupeds, the two parts of the organ are separated to a distance from one another, so that the creatures appear to be furnished with a pair of lungs; and from the windpipe, itself single, there branch off two separate parts extending to each of the two divisions of the lung.

对于卵生动物，像是鸟和卵生的四足动物，器官的两部分被分成距离较远的两部分，以至于生物呈现成对的肺；而且从气管单独来说，分成两部分，分别深入肺的两部分。

After rigorously mathematical deduction, some valuable conclusions are drawn: at the multiple times of symbol period, discrete peaks of the PACA function appear with 3 peaks in group, which includes a larger peak located in the middle and the other smaller two located symmetricly beside the larger one. The distance between small peaks is modulation offset of pulse position PPM.

经过严格数学推导，指出了TH-UWB信号的PACA函数不但在字符周期整数倍处出现离散峰值，而且按三个峰值(一大峰值左右对称出现小峰值)成对出现，大峰和小峰的间隔就是PPM调制时间偏移。

Pairing of homologous chromosomes commences at one or several points on the chromosome and is clearly seen during PACHYTENE of meiosis I.

同源染色体两两成对平行靠拢，这一现象也称联会，联会发生在染色体的一点或多点上，可以在减数第一次分裂的粗线期观察到。

Why take a pair of animals with them?

为什么要成对的带动物？

Using 75 varied low frequency noise samples with adjusted-loudness as sound stimuli, we investigate sound quality for low frequency noise with paired comparison method.

以等响处理后的 75 个稳态低频噪声样本为例，采用成对比较法，设计并完成了有 24 位评价者参与的大规模实验室主观评价实验。

Firstly, cluster analysis and questionnaire surveys are performed to obtain a number of auditory attribute descriptors in Chinese language, and then based on paired comparison and semantic differential approach, a dissimilarity matrix and a subjective evaluation value of each descriptor are obtained.

首先通过词汇聚类分析和问卷调查确定评价水下噪声听觉属性的汉语描述词，然后完成基于成对比较法和语义细分法的主观评价实验，获得听觉属性的不相似性矩阵及各样本在不同听觉属性下的主观评价分值。

In the paired samples t test of the empirical results, the sample of non-election financial company shares and events of the early events in the latter part of the case is significant.

在成对样本的t检定实证结果中，无改选金融股样本公司的事件前期及事件后期呈现显著的情形。

Independent samples and paired samples, F distribution, critical values for F distribution.

教学目的：通过学习理解独立样本和成对样本的区别，进一步掌握两样本平均数比较的 t 测验以及方差比较的 F 测验原理和方法。

Data collected were compared by means of the Paired Samples t test to see whether students made any significant difference in their English achievement performance and their learning motivation before and after the study.

资料经由成对样本T检验来看学生在研究前后的英文成就表现和学习动机及态度上是否有显著差异。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。