首先，根据工程机械图纸和明细表等现有资料，在计算机中初步自动地确定出主导变量、局部变量和作用变量。
First, by the information in existence, such as engineering drawings and lists, the master variables, local variables and activate variables are fixed out automatically.
我怀疑，该领域的一些专家将热衷于作出其他解释，比如在幸福感下降中发挥作用的未评估变量。
I suspect that some experts in the field will be keen to address alternative explanations, such as unassessed variables playing a role in the well-being decline.
我怀疑该领域的一些专家会热衷于寻找其他解释，比如未评估的变量在幸福感下降中发挥的作用。
I suspect that some experts in the field will be keen to address alternative explanations, such as unassessed variables playing a role in the wellbeing decline.
首先，他们解释说，如果一个给定的变量在影响幸福感方面发挥了作用，那么我们应该预期该变量的任何变化都与所观察到的幸福感变化相关。
First, they explain that if a given variable is playing a role in affecting wellbeing then we should expect any change in that variable to correlate with the observed changes in wellbeing.
除时间以外的其它变量也起了非常重要的作用。
Other variables beyond the question of time played important roles too.
为了回答这个问题，我模拟了一系列的测试，来测试不同作用域深度中变量的性能。
In order to answer this question, I set up a series of tests using variables of different scope-depth.
另请注意变量间相互作用的复杂程度。
当指定表达式的值改变时，监视点将中断程序执行，但必须在表达式中所使用的变量在作用域中时设置监视点。
A watchpoint will break program execution when the specified expression changes value, but it must be set when the variables used in the expression are in scope.
但你永远不知道其他变量会有什么作用。
But you never know what other variables could be in play here.
其余的变量的作用与它们在JSP页面上的无异。
The rest of the variables have the same roles that they have in JSP pages.
相比之下，长期运行的对话能够在一系列明确定义的请求期间保持作用域中的变量。
In comparison, a long-running conversation holds variables in scope over a well-defined series of requests.
除此之外，表格还允许用户对十几个不同的变量——从出租车的服务费到卡车的通行费——进行调整，以考察这些变量的作用效果。
And it allows any user to adjust dozens of different variables-from taxi surcharges to truck tolls-and measure their impact.
var属性会导致从指定URL获取的内容（作为String值）被存储在一个限定了作用域的变量中，而不是包含在当前 JSP页面中。
The var attribute causes the content fetched from the specified URL to be stored (as a String value) in a scoped variable, rather than included in the current JSP page.
newlogpath2变量和mirrorlogpath参数具有相同的作用—它们用于实现双重或镜像日志记录。
The newlogpath2 variable and the mirrorlogpath parameter both serve the same purpose - they are used to implement dual or mirror logging.
这就意味着在执行with的过程中，实际上的局部变量都被移到作用域链上的第二个位置，这会带来性能上的损失。
This means that local variables actually move to an identifier depth of two during execution of the with, imposing a performance penalty.
通常，可选的scope属性用来指定由var属性指定的变量的作用域。
As usual, the optional scope attribute is used to specify the scope for the variable named by the var attribute.
同样，很难理解trap语句的作用以及每个变量可以是哪些值。
Again, it's quite difficult to understand what the traps are suppose to do or what the values are for in each variable.
servlet上下文属性与保存在application 作用域内的JSP/JSF变量类似。
The servlet context's attributes are the same thing as the JSP/JSF variables kept in the application scope.
一个闭包封闭了这些引用，所以函数调用可以安全的引用这些变量，即使它们已经超出了函数的作用域。
A closure "closes around" these references, so the function invocation can safely refer to the variables even when the variables have gone out of scope!
还要设置变量作用域，以限制变量只在某个“会话”中活动。
Set the variable scope to limit variables to live only within a "session".
而对应用程序的状态变量有影响的方法也有副作用。
And any method that impacts the state of application variables also has side effects.
在这些情形下，无数变量复杂的相互作用——或者是某些现象的内禀随机性——使得确定的预测几近不可能。
In these cases, the complex interaction of many variables — or the inherently probabilistic nature of certain phenomena — rules out a definitive prediction.
如果产生了异常，那么就会对那个限定了作用域的变量进行赋值：如清单18中的EL表达式所显示的那样，该变量的值将不会为空。
If an exception was raised, then assignment to the scoped variable will occur: as the EL expression in Listing 18 suggests, its value will not be empty.
例如，在第6章中对栈和寄存器结构的解释要联系到第4章中对变量作用域的解释。
For example, the explanation of stacks and register frames in Chapter 6 connected with Chapter 4's explanation of variable scope.
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.
这段代码可以引用块中定义的局部变量、闭包的参数以及创建闭包的作用域中的变量。
This code can refer to local variables defined within the block, arguments to the closure, or variables from the scope in which the closure is created.
使用长期运行的对话，允许变量保持作用域直至对话结束，而不仅仅是单个请求。
Using a long-running conversation allows variables to remain in scope until the end of the conversation, instead of merely for a single request.
如果这些计算有某些副作用(例如打印、修改全局变量等)，那情况就更加严重了，因为这些副作用都会被处理两次。
It's even worse if one of those calculations has side effects (like printing, modifying a global variable, etc.) because these side effects will be processed twice.
scope属性控制该变量的作用域，缺省情况下是页面作用域。
The scope attribute controls the scoping of this variable, and defaults to page scope.
scope属性控制该变量的作用域，缺省情况下是页面作用域。
The scope attribute controls the scoping of this variable, and defaults to page scope.
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