下代

When the oppositifolious character is in different genetic background, the process and efficiency of orientational selection is different.

通过F4代的26个转育的对生自交系进行对生性状的连续10代定向选择，以及三种不同的组配方式（对生×互生、对生×对生、互生×互生）对对生率的影响的研究，结果表明：连续定向选择是获得稳定对生系是一种有效的技术途径，对生性状在不同的遗传背景下，其定向选择的进程和效率是不同的。

According to these, we can realize tectonic control, palaeogeographic pattern as well as palaeobiogeographic distribution of the Qinghai-Tibet Plateau in the early Paleozoic and also provided the materials to the cosmepolitical biostratigraphic contrast.

新建下奥陶统扎扛组和他多组，完善了藏北地区早古生代地层序列，为研究青藏高原在古生代早期的构造活动、演化、古地理分布格局及古生物地理区划提供了资料，也为世界性生物地层划分对比提供了依据。

A frame image of a video frequency sequence is read into a postpositional memory zone, and staring position and size information of a tracked object is obtained in the frame, then distribution statistical information of a target signature is extracted to build a gauss mixed model as an object template, a mean vector and a covariance matrix in gauss mixed distribution are used to describe the position and the size of the object, then the next frame image of the video frequency sequence is read into the postpositional memory zone. In a new frame video frequency image, a parameter estimation method is used to obtain object gauss mized model parameters in the current frame in iterative computation and find candidate template similar to the object template, and the final model parameters obtained in iteration are used to update the tracking window for realizing self-adaption of the tracked window.

将视频序列的一帧图像读入缓存区，获得该帧中被跟踪目标的初始位置和尺寸信息，然后提取目标特征的分布统计信息建立高斯混合模型作为目标模板，用高斯混合分布的均值向量和协方差矩阵描述目标的位置和尺寸，再将视频序列下一帧图像读入缓存区，在新一帧视频图像中利用参数估计方法迭代计算当前帧中目标高斯混合模型参数找到与目标模板最相似的候选模板，利用迭代得到的最终模型参数更新跟踪窗口实现跟踪窗宽的自适应。

Eight complexes of light rare earths with dioctyldithiocarbamate,〓 xH〓O (RE=La-Tb, except for Pm) and Nine complexes of rare earths with 5-phenyl pyrazoline dithioformate, Na RE〓·xH〓O (RE=La-Dy, Y, except for Ce and Pm) have been synthesized in air and dry N〓atmosphere, respectively.

分别在空气和氮气保护条件下，合成出八种稀土与二正辛基二硫代氨基甲酸形成的配合物〓（RE=La-Tb，除Pm外）和九种稀土与5-苯基吡唑啉二硫代甲酸的固态配合物NaRE〓（La—Dy、Y、除Ce、Pm外）。

It is proved that Newton iteration method is still quadratically convergent under a weak condition, and a new point is added to Newton s method , i.

本文讨论求解非线性方程的牛顿法，证明牛顿法在一个弱条件下仍保持局部二阶收敛性，给出牛顿法的一点改进，即一个不带导数的单参数的二阶收敛的迭代法，而且分别得到这两种迭代法的收敛因子，最后进行数值实验

Of the T〓 CaMVBT transgenic plants, the normally-growing plants showed two kinds of pollen fertility and seed-setting ratio under long-day condition. 62. 9% of which showed poorer pollen fertility, smaller, thinner seeds than those of untransformed regenerant control and that seeds were nonviable.

2自然启动子调控的rolB转基因农垦58S中，少数T〓代单株表现植株较矮小、茎杆细、叶片有卷曲或皱缩、生长势减弱、可育条件下败育等与CaMVBT转化的T〓代部分单株相似的表型。

The data indicated that the parasitism of Pseudanastatus albitarsis Ashmead is the highest among the four species, the second is Telenomus dendrolimusichu Matsumura and Telenomus dasychiri Chen et Wu, the last is Trichogramma dendrolimi Matsumura.

结合环境因子、防治情况的分析表明，2005 年第一代卵期平腹小蜂在阳坡和其它坡向条件下的寄生率差异性显著(t=3.836， p=0.008.05)，2004 年第二代黑卵蜂的寄生率在马尾松林和湿地松林内差异性显著(t=2.494， p=0.020.05)，不同树高、土壤厚度和不同防治样地内天敌的寄生率差异不显著。

In ultraviolet and spark discharging, dichloromethane, trichloromethane, tetrachloromethane and 1, 2-dichloroethane can react with nitrogen dioxide and nitrogen oxide respectively rapidly.

由此得到氯代烷与NO〓在火花放电、紫外光照射条件下，将发生快速化学反应。这对了解臭氧层中卤代烷烃和氮氧化物之间的化学反应有一定的参考意义。

Diethylthiophosphoryl chloride was synthesized by reacting phosphorus thiochloride with anhydrous alcohol in the presence of NaOH, and then a novel phosphorus-nitrogen- and sulfur-containing flame retardant, 1, 4-di(O,O-diethyl thiophosphoryl imine) benzene, was synthesized via the reaction of diethylthiophosphoryl chloride with p-phenylenediamine.

以三氯硫磷与无水乙醇在NaOH存在下合成了二乙基硫代磷酰氯，然后再与对苯二胺反应合成了新型的含磷、氮、硫的膨胀型阻燃剂：1，4-二（O，O-二乙基硫代磷酰亚胺基）苯。

XIANG Yu SHEN Zuo-Rui HUANG Da-ZHuang,LI-Ruijun作者单位: Department of Entomology, Chinese Agriculture University论文摘要:,,,(1., Beijing, 100094; 2., Baoding, 071000 ) Abstract: Based on both molecular detection of Wolbachia wsp gene and biological character observation, relationship between thelytokous character of Trichogramma cacoeciae and its symboint Wolbachia has been studied under the condition of 30℃ of 10 generations.

论文摘要：在30℃的条件下，连续饲养卷叶蛾赤眼蜂10代，观察每代蜂的生物学特性，并进行 Wolbachia的wsp基因的分子检测，从分子生物学和传统生物学的双重角度研究卷叶蛾赤眼蜂产雌孤雌生殖行为与其体内共生菌Wolbachia的关系。

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。