查询词典 environment variable

If an external variable declaration also includes a declared type, the value provided by the external environment must match the declared type, using the matching rules in 2.4.4 SequenceType Matching (see 2.2.5 Consistency Constraints ).

如果外部变量声明也包含一个声明的类型，则由外部环境声明提供的值必须与声明的类型一致，此处应用2.4.4 SequenceType Matching中的匹配规则（参见2.2.5 Consistency Constraints）。

ABSTRACT Development of internal combustion engine has been directed by energy saving and environment protection for a long time. Because lean burn technique has great potential to improve fuel consumption and emissions, it has been paid much attention. Variable induction and twice injection [patent no. 98107693. 9] , which have been developed in recent years, have also shown good effect on engine performance.

能源与环境现已成为内燃机技术发展的主导因素，稀薄燃烧由于其能够很好地改善发动机燃油经济性和排放特性而受到广泛重视；可变进气、二次喷油[专利号：98107693.9]等近年来发展起来的技术也表现出良好地改善发动机性能的能力。

This paper described a experiment study of remote sensing systematic analysis on natural resource and environment Change monitoring. Main methods concern changed factor extraction through the brightness statistics, ratio and texture analysis; matching multi-temporal remote sensing data, normalized difference comparison,"brightness" and "greenness" difference analysis of principal components method by using image processing system; updating renewable natural resources changed map through overlaying or partly revising multi-temporal maps by using geographical information system; establishing mathematic model, such as: variable correlation regional regression and tendency surface analysis etc., for researching renewable natural resource change law.

本文叙述了有关资源环境动态遥感监测研究方面的初步探索性工作，主要包括利用图像处理系统，根据专题变化因素的光谱亮度统计进行密度、比值和纹理处理、不同时期遥感信息的复合处理和规一化差值及主成分分析法的"亮度"、"绿度"差值分析；利用地理信息系统，采用覆盖分析和局部更新法进行再生资源变化图件的快速更新，以及为研究再生资源动态变化规律，而进行的多变量相关、区域回归分析方法。

The value changes for your program only, not for GDB itself. value may be any string; the values of environment variables are just strings, and any interpretation is supplied by your program itself. The value parameter is optional; if it is eliminated, the variable is set to a null value.

这个改变只针对你的程序，不影响 GDB 本身。value 可以是任何字符串，环境变量的值仅仅是字符串，任何解释都是你的程序自己的。value 参数是可选的，如果没有，变量会设为空值。

These factors have low correlation with mobile terminal\'s velocity, position and environment\'s short time variable.

这些因素与终端的运动、所处的位置、无线信号的传播环境的短期变化关系不大。

The major purpose of the study will explore the effectiveness level of investment decision strategy variables (i.e., these variables are separated in five variable groups: macro economy, consumer, product, market, and risk assessment) affecting investment decision process by three types of risk-taking investors (i.e., risk averter, risk neutral and risk lover investors) in a major banking crisis environment.

本研究目的主要探讨金融风暴期间，三种不同类型的风险承受者(风险规避者、风险中立者、风险偏好者)是否改变投资决策的变数，分别为总体经济、投资者、产品、市场、风险评估的五项构面，对投资决策过程的影响权重。

Parameter PID control strategy fitting for variable velocities and loads was proposed, and the control system's model was established. The control strategy was simulated in MATLAB environment, and the results proved the tracking trajectory of three kinds of gaiting, i.e.

针对控制系统能够适应不同路况的要求，设计了一种适应负载、速度变化的变参数PID控制器，并建立了控制系统模型。

The powerful heterogenic for population differentiation and genetic variation strength its adaptability to variable environment, M.avenae adapted to the nature condition and it also resulted in the heredity variation of M.avenae populations.

在环境条件和化学农药、小麦品种等人为条件的强大选择压力下，麦长管蚜种群发生了较大的遗传变异。

As the requirement of energy-saving and indoor environment gets higher and higher, variable flow technology are widely used in heating and air conditioning systems, namely by changing power or resistance to adjust the flow of the system、subcircuit and terminal equipment so as to match usually mutative dynamic heat load variation.

摘要随着节能和室内环境要求的愈来愈高，供暖和空调系统广泛采用了变流量技术，即用改变动力或改变阻力的方式调节系统、支路以及末端设备的流量，使之与经常变化的动态热负荷相匹配。

DIPSO incorporates the dynamic mutation, multi-subpopulations methods of IPSO, and changes the heights and the positions of the peaks by variable parameters and chaotic model. This algorithm uses multi-subpopulations to search for the highest peak in order to track the dynamic environments. Furthermore, DIPSO apperceives the changes of the environment by tracking the fitness value of the global optimal particle.

该算法是IPSO的动态版本，沿用了IPSO的动态变异策略、多子种群策略，在算法运行的过程中分别对环境进行参数设定型动态变化和混沌模型动态变化，利用多子种群分别对多个峰进行搜索，很好地实现了算法的追踪性能；对全局最优粒子进行实时跟踪，利用其适应度值的变化来发现环境的改变，并以此来引导群体对环境变化的感应。

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。