环境变量

And you want to define the USERNAME environment variable for each user with these values

如果你创建了一个脚本，它包含了不同的值，并且你要定义用户名环境变量，为每一个要使用这些值的用户

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

For example, we may log environmental variables, such as browser type, operating system, CPU speed, referring or exit webpages, and the Internet Protocol address of your computer.

例如， 我们也许采伐环境变量，譬如浏览器类型，操作系统、CPU 速度、提到或出口网页，和您的计算机互联网协议地址。

In this paper, four diversity indexes were considered as quantitative indicators of understory for urban forest, while the features of environment variables were recorded at the corresponding quadrat scale.

以4类多样性指数作为衡量城市森林林下层植物多样性差异的定量指标，并同时记录对应样方尺度的环境变量特征。

The regression coefficient inthe model of time series and environment variable is 0.93,and the confidence level is above 99%.

包含时间序列和环境变量的渔获量模型的回归系数为0.93，其置信水平达到99%以上。

OFF2000: Internal Error 2755, When You Try to Install from a Remote Windows Terminal Server Client

安装程序没有对 Windows 环境变量设置的安装目录创建和写的权限。

Note that you can now use environment variables in these strings as well.

注意：你也可以使用环境变量在这些字符串里。

In the part of system migration and driver development, the Windows CEs architecture and driver model is deeply studied. Then the driver model of Micro-Control Unit, keyboard, radio is designed and the rull of communication between the PXA255and Micro-Control Unit is defined.

在系统移植与驱动开发部分，着重研究了其系统架构和驱动模型，并在此基础上设计了微控制器、收音机和键盘的驱动模型，定义了微控制器与核心处理器之间的通讯规则，配置了Windows CE的相关文件及环境变量。

In some cases, environmental variables have to be specified using alternative syntaxes.

在某些情况下，环境变量必须使用其他的语法指定。

In some cases, environmental variables have to be specified using alternative syntaxes.

在某些情况下，环境变量不得不使用替代的语法来指定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐