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The probability distribution three-state models of field strength and its probability distribution images under different environments,which are suitable for LEO mobile satellite communication system , are established in this paper.

建立了一种适用于低轨卫星移动通信系统的场强概率分布三状态模型和不同环境下的概率分布模型曲线。

Considering portfolio selection issue with the realistic environments of the stock market in China,we propose Probability Criterion Model in this paper.

考虑到我国证券交易过程中许多限制性的规定及现实投资者并非完全理性的决策行为，给出了概率准则组合投资的收益-损失风险双目标整数规划模型。

Programmed instruction was an integral factor in the evolution of the instructional design process and served as the foundation for the procedures used currently to develop effective learning environments by instructional designers and performance technology professionals.

程序教学在教学设计过程的发展中是一个重要因素，可作为教学设计者和绩效技术专家当前使用的开发有效学习环境程序的基础。

A localization algorithm based on visual protractor was proposed in order to solve the problem of mobile robot localization in outdoor environments.

针对移动机器人在室外环境中的定位提出了一种基于视觉量角计的定位算法。

In the distributed computing environments such as wireless network, the key exchange protocol with mutual authentication is critical to the following secure sessions between communicators and more attentions are paid to the provability of the protocol security.

在基于无线网络的分布式环境中，带认证的密钥协商协议对通信双方是否能够建立安全的会话至关重要。

Pseudotuberculosis and its ompR mutant caused by adapting to acidic environments were revealed.

肠道传染性致病菌的感染需要经过动物体内不同的酸性环境。

The results showed that length from flag leaf pulvinus to spike base has the largest coefficient of variance of 42.1% and 37.2% in both DS and WW environments, respectively, while the spikelet per spike has the smallest CV of 6.4% and 5.7%. Under different water regimes, spike number per plant, effective spikelet per spike and peduncle length contribute a lot to the stable grain yield. Genetic diversity indices of DTI were from 1.95 to 2.07, with an average value of 2.02. Based on the DTI of agronomic traits, all accessions could be clustered into seven groups, the first and third groups are not sensitive to the water regimes, and the second group is more suitable for planting in dryland.

结果表明：在雨养和灌溉条件下，穗叶距的变异系数最高，分别为42.1%和37.2%，单穗总小穗数的变异系数最低，为6.4%和5.7%；不同水分条件下，植株稳产性主要受单株穗数、有效小穗数及穗下节长的影响；性状耐旱指数的多样性指数在1.95到2.07之间变化，平均值为2.02；根据性状耐旱指数将供试材料分为7个类群，其中第I、第III类群材料表现为对水分条件不敏感，而第II类群材料更适于在干旱条件下种植。

In chapter 4, the three-dimensional fluorescence spectra of ethidium and pyrene in various environments have been studied.

第四章主要是研究芘和溴化乙锭两种常用荧光探针在不同环境介质中的三维荧光光谱变化。

TDFPS has been applied to the study of fluorescent properties of ethidium bromide, pyrene and tryptophan in various environments.

运用三维荧光偏振光谱法研究了溴化乙锭、芘和色氨酸在不同环境中的荧光特性。

This thesis presents detailed analysis and computer simulation of the influence of the operator's body on the performance of the portable radiophone in urban mobile environments.

本论文探讨，都市移动环境下，无线通讯手机天线靠近人体状况时，对行动通讯性能影响之电脑模拟计算。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。