平均距离

When we met the data of genetic variation of East Asian Cyprinid group, the mean sequence divergences between groups were higher than that between Cultrinae taxa,then we could conclude that CO1 gene was a valid marker for DNA barcoding of East Asian endemic Cyprinid taxa.

对整个东亚特有鲤科鱼类平均种间遗传距离分析，发现其平均种间遗传距离显著大于鲌亚科平均种间遗传距离(鲌亚科平均种间遗传距离远大于平均种内遗传距离)，据此推断线粒体CO1基因能在东亚特有类群中有效的进行物种鉴定。

The dissertation includes the work as follows: Firstly, we present a random graph model with spatial reuse for a dense MANET which using directional antennas. The analytic formula of several important performance parameters for the MANET are obtained under the DSR routing protocol, such as the average flooding distance, the probability generating function of the flooding distance, the probability of a flooding route to be symmetrically valid, the average time to find a symmetrically valid route and the cost to successfully route a data packet to its destination. We compare the two models with spatial reuse and without spatial reuse by evaluating these parameters. It is shown that the spatial reuse model is much more effcctive in terms of the performance of the dense network with directional antenna, because the bigger is the degree of spatial reuse, the smaller is the average flooding distance.

在定向天线技术的支持下，建立了移动自组网络空间可重用的贝努利随机图模型，获得了DSR路由协议下平均泛洪距离的解析公式和泛洪距离的概率母函数：给出了有效对称路由概率、发现有效路由平均时间、成功路由代价等关键性能参数的解析分析；在网络性能参数定量分析的基础上，对空间可重用和无重用的网络进行了比较分析，结果显示空间重用度增大，则平均泛洪距离、路由发现时延、网络代价减少。

Seven main effect QTLs and 7 digenic interactions controlling heat tolerance during flowering time were detected in two-year experiments.

利用181个在亲本间具有多态性的SSR标记，构建了覆盖水稻全基因组1559.6cM、标记间平均距离为8.3cM的遗传连锁图谱。2年共检测到7个抽穗开花期耐热性主效应QTL以及7对上位性QTL.2004和2005年分别检测到3个和4个QTL，共解释29%和37.3%的表型变异。

RESULTS: The median distance from the duodenojejunal flexure to the loop stoma was 80 (range 30-170) cm.

结果：袢式造瘘与十二指肠空肠返折处的平均距离为80 cm （30～170cm ）。

Studies were done to establish the average distance from the incisal or occlusal surface of the tooth to the center of the clinical crown.

研究建立进行了平均距离切或咬合面的牙齿的中心临床冠。

From the structural analysis of three praseodymium complexes, we could draw a conclusion that as the dentate arms of carboxyl group on ligands elongating, the coordination numbers of Pr and the coordination modes of ligands increase, and the mean distances between metallic atoms of metallic helices existing in these complexes augment.2. By altering 5-substituting group of isophthalic acid three series of lanthanide complexes 8～19 with 5-methylisophthalic acid and 5-nitroisophthalic acid have been prepared.

从得到的三个配体的镨配合物的结构分析可以看出，随配体的羧基齿臂的增长，Pr的配位数逐渐增大，配体的配位模式增多，配合物中存在的螺旋金属链中的金属间平均距离增大。2、通过改变间苯二甲酸配体的5位取代基，制备了5-甲基间苯二甲酸和5-硝基间苯二甲酸的三个系列稀土羧酸配合物8～19。

RESULTS: The median laryngoscopic view was 3 and the mean interincisordistance was 3.3 cm.

结果：喉镜视野评级中位数为3；置入平均距离为距门齿3.3cm 。

Results of experiments show that this optical fiber vibrometer is suitable for dynamic mensurement ,capable of making compensation of target surface reflectivity ,illuminating power and mean distance between probe and target surface.

实验结果表明，这一方法适宜于动态测量，可以实现被测表面反射率、入射亮度及探头与被测表面间平均距离的补偿。

The distances between inferior margin of 12th rib and the 3 above-mentioned nerves were all measured. Results: The superior lumbar triangle was quadrilateral (55%), triangular (35%) or irregular (5%). If the 12th rib was too short, the upper border of the triangle would be the 11th rib (5%). Four grouping patterns of the 3 nerves were found in front of the triangle, and the average distance between inferior margin of 12th rib and the 3 nerves was (16.92±6.32)mm,(59.49±14.97)mm and (112.49±17.15)mm, respectively.

结果：腰上三角的形态可为四边形(55%)、三角形(35%)和不规则形(10%)，该三角的上界可完全由第11肋(5%)构成；肋下神经、髂腹下神经和髂腹股沟神在腰上三角前方有4种不同的组合形式，三神经与第12肋下缘的平均距离分别为(16.92±6.32)mm、(59.49±14.97)mm、(112.49±17.15)mm。

With those trips, Hubble has racked up plenty of frequent-flier miles, about 2.8 billion, the planet Neptune's average distance from the Sun.

随着这些历程，哈勃空间望远镜已经累计了丰富的飞行里程，大约是28英里，这相当于海王星到太阳的平均距离。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。