PHP的一个优秀特性是可变变量。
全局变量表示一个可以使用sql语句访问和修改的可变值。
A global variable is a representation of a changeable value which can be accessed and modified using SQL statements.
只有在通用锁上执行同步或访问一个通用的可变变量时，才能创建跨线程的Happens - before排序。
Happens-before orderings across threads are only created by synchronizing on a common lock or accessing a common volatile variable.
把这个约束条件考虑进去，其中一个可变，另外一个不变，第三个变量就一定会随着第一个变量的改变而发生改变。
To take this into account means that if we vary one variable while keeping another one fixed then the third one, since it depends on them, must also change somehow.
毕竟XSLT缺少对很多算法来说极其重要的特性，其中包括循环和可变的变量。
After all, XSLT is missing some features that are important to a lot of algorithms, including loops and mutable variables.
在fp里，函数没有副作用，变量都是不易变的。而在OOP中，可变状态和副作用都十分常见，甚至是被鼓励的。
In FP, functions have no side effects and variables are immutable, while in OOP, mutable state and side effects are common, even encouraged.
这与大多数语言不一样—变量的定义通常意味着值是可变的。
This is unlike most languages - the very definition of variable tends to imply that the value is variable.
读取和写入原子变量与读取和写入对可变变量的访问具有相同的存取语义。
Reads and writes of atomic variables have the same memory semantics as read and write access to volatile variables.
修改此变量对于确定在匹配单击时间签名时可以接受的可变性非常关键。
Modification of this variable is key to determining what amount of variability is acceptable during a click-time signature match.
当作为构造函数参数时，这些可变或者不可变的变量会在一个对象被实例化的时候被初始化。
When used as constructor parameters, the mutable or immutable variables specified will be initialized when an object is instantiated.
本地变量空间用作该函数的通用存储空间，寄存器保存区用于保存函数所使用的非可变寄存器的值。
The local variable space is used as a general storage area for the function, and the register save area is used to save the values of non-volatile registers that the function USES.
一个可变的变量用关键字var来声明。
变量存储了当前状态，并且真正是可变的。
A variable stores the current state and is genuinely mutable.
毫不令人奇怪的是，while循环也需要一组可变本地变量，在这里，这些变量被命名为a和b，其中存储的是当前支点。
Not surprisingly, the while loop also requires a set of mutable local variables, in this case named a and b, in which to store the current pivots.
如果捕获可变局部变量是允许的行为的话，平台就需要扩展局部变量的生存期，使之与任何捕获该变量的lambda表达式的动态生存期一样长。
If capture of mutable locals were allowed, the platform would need to extend the local variable's lifetime for as long as the dynamic lifetime of any lambda expression that captures it.
原子变量类可以认为是volatile变量的泛化，它扩展了可变变量的概念，来支持原子条件的比较并设置更新。
The atomic variable classes can be thought of as a generalization of volatile variables, extending the concept of volatile variables to support atomic conditional compare-and-set updates.
atom是状态可变更的变量。
当你声明一个变量的时候，Scala允许你来决定它是不变的(只读的)还是可变的(可读写的)。
Scala allows you to decide whether a variable is immutable (read-only) or not (read-write) when you declare it.
若元件加一斜向直线箭头、则是可变量的符号，表示其排量和压力是可调节的。
If the part adds a diagonal straight line arrow, is the variable mark, indicated that its displacement and the pressure are may adjust.
用在数学或者逻辑表达式里代表一个可变量的符号。
That is used in mathematical or logical expressions to represent a variable quantity .
用在数学或者逻辑表达式里代表一个可变量的符号。
A symbol that is used in mathematical or logical expressions to represent a variable quantity.
可变的变量是可以从关闭。我怎样才能解决这个问题？
Mutable variable is accessible from closure. How can I fix this?
地质和天文变量中常常存在参数可变的振荡衰减型自相关函数。
Variations of geology and astronomy have constantly parameter variable auto-correlation function of vibration attenuation type.
多变量分析法运用r型因子分析来判断品种生态型的基本特征和可变特征。
Multivariate analysis is to use R-typer factor to judge the basic characters and variable natures of ecotypes of wheat varieties.
不像字符串是不可变量，列表是可变类型，例如：它可以改变它本身某个元素的值。
Unlike strings, which are immutable, lists are a mutable type, i. e. it is possible to change their content.
提出了一种用于图像分割的分段可变形模型，并在模型的能量函数中引入了仿射不变量信息。
A segmental deformable model for image segmentation was presented and affine invariants were introduced into the model's energy function.
讨论了一类具有有界可变时滞分离变量系统平衡点的全局指数稳定性。
The global exponential stability of equilibrium states of a class of nonlinear separated variables systems with bounded time-varying delays was investigated.
选择“工具”菜单中的“单变量求解”命令，可改变可变单元格的值而寻求目标单元格的最优解。
You can use the Goal Seek command on the Tools menu to reach a target value for one cell by changing the value in another cell.
该文针对可编程控制器在线调试中静态地址可变的问题，分析了监控变量的地址分布是影响实时性效率的关键因素，提出一种地址自动生成方法。
It plays a key role in real-time efficiency of PLC online debug that the address of monitored variable is invariant. A method of automatic generation of address dynamically to map is proposed.
该文针对可编程控制器在线调试中静态地址可变的问题，分析了监控变量的地址分布是影响实时性效率的关键因素，提出一种地址自动生成方法。
It plays a key role in real-time efficiency of PLC online debug that the address of monitored variable is invariant. A method of automatic generation of address dynamically to map is proposed.
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