函数变量

Any function may access an external variable by referring to it by name, if the name has been declared somehow.

任何函数都可以通过名字访问一个外部变量，当然这个名字需要通过某种方式进行声明。

An external variable must be defined, exactly once, outside of any function; this sets aside storage for it.

外部变量必须定义在所有函数之外，且只能定义一次，定义后编译程序将为它分配存储单元。

Extremal optimization algorithm is a new heuristic method, whose principle is to select and update the worst variable, and improve the fitness of the whole problem.

极值优化算法是新开发的一种启发式算法，其基本思想是更新适值最差的变量，提高目标函数的适值。

Takingthe contact stress, bend stress stiffness and temperature stress as thecondition, taking the weight of the kiln tyre as optimization aim function, theredia and the width of the tyre are optimized General optimize methods justconsider the affecting of the parameters to aim function, but in fact,structural parameters(such as structure dimension, interval and so on),physics and dynamics (damp factor, conduct factor, friction factor material'selastic module strength limits and so on), which would be changed afterused.

一般的优化方法，仅仅考虑了参数对其目标函数的影响，而实际情况下有些参数是变化的，产品的结构参数、物理和力学参数如阻尼系数、传导系数、磨擦系数、材料的弹性模量和强度极限等的设计值与制造后和使用中的实际值会有差异，这种差异称为设计变量和噪声因素的变差。

Results:Zn content in fetus liver is a variable and a function of time.

结果 ：胎儿肝锌是一个变量，是时间的函数。

Based on the Hamiltonian governing equations of plane elasticity for sectorial domain, the variable separation and eigenfunction expansion techniques are employed to develop a novel analytical finite element for the fictitious crack propagation linear force model in fracture mechanics of concrete in this paper.

利用平面扇形域哈密顿体系的方程，通过分离变量法及共轭辛本征函数向量展开法，以解析的方法推导出基于混凝土虚拟裂缝扩展线性粘聚力模型的平面裂缝解析元列式。

If you do declare variables, functions, or namespaces at the top level of a package, the only attributes available at that level are public and internal, and only one package-level declaration per file can use the public attribute, whether that declaration is a class, variable, function, or namespace.

在包顶层定义的这些元素的属性只能为public和internal(只对包中的其他成员可见)，并且每一个文件中只能有一个包层面的元素定义为public属性，不管这个元素是类、变量、函数还是命名空间。

We should take the economic system and the system of natural resources as a whole, which make a country to pay attention to the protection and the sustainable use of natural resources. The finiteness of natural resources let us think the sustainable development of economy.

从经济角度而言，资源永远是稀缺的有价的，它是生产函数的基本变量，自然资源的禀赋及供给情况决定了一个国家的经济增长路径，将经济系统和环境资源系统作为一个整体来考虑，就要求一个国家在发展经济的同时注重本国资源的保护和可持续利用。

Inside of foo it could see all of these variables a, b, and c

如果我们在foo中定义另一个函数，它将可以调用所有的这些变量

Rational number wavelet filter can be constructed by reducing the order of vanishing moments of wavelet function, but the value of free variable that appears in design equations should be selected in a certain range, because the wavelet construction must meet Daubechies compact-support condition.

有理系数小波滤波器的设计可以通过降低小波函数消失矩阶数来实现，但设计方程中出现的自由变量的取值需要在一定的范围之内，因为需要满足Daubechies紧支集条件。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。