最后一项操作尤为有用，因为它允许我们在树上执行符号操作。
The last operation is particularly useful because it lets us perform symbolic manipulations on the tree.
符号的工作方式与此相反；如果第一个命令未成功完成，则执行第二个命令。
The | | symbol works in the opposite way; if the first command does not complete successfully, then execute the second.
加快开发和内容创建：大多数BPM工具基于专有符号和执行语言。
Faster development and content creation: Most BPM tools are based on proprietary notations and execution languages.
例如，MSF说，您必须执行功能规范，但并没有指出应该使用什么技术，什么符号，等等。
For example, MSF says that you must perform a functional specification, but it does not what technique should be used, which notation, etc.
您可以对这些符号执行各种运算（如计算比率），而对于通过使用功能不那么强大的衡量标准获得的数值，您不能使用这些运算。
You can perform various operations on those symbols (such as computing ratios) that you cannot perform using numerical values obtained using less powerful measurement scales.
第三个(最右边的)矩形，名为BookRoom，既有人也有插头符号，这就意味着用户执行该活动的一部分，剩余部分由某些自动处理在后端完成。
The third (right-most) rectangle, named BookRoom, has both a human and a plug symbol, which means a user performs part of this activity and the rest is done by some automatic process at the back end.
在执行install时，就会检查busybox. links文件确定要创建的符号链接。
When install is performed, the busybox.links file is checked for the symlinks to create.
符号 #{id:inputText1}是服务器端脚本，在将页面发送到浏览器之前执行该脚本。
The notation #{id:inputText1} is a server-side script that executes before the page is sent to the browser.
Bruce抱怨两个关键的标准：BPM：BPMN(业务过程建模符号)和BPEL(业务过程执行语言)之间存在严重的失配。
Bruce complains that there is a strong mismatch between the two key standards of BPM: BPMN (the Business Process Modeling Notation) and BPEL (the Business Process Execution Language).
Manoj DasBPMN提供了一种面向业务分析师的建模符号，特别是对于流程建模而言，以及一个具有执行语义的模型。
(Oracle, Manoj Das) BPMN provides a modeling notation targeted at business analysts, specific to process modeling, and one with execution semantics.
在某些模式中一些选项及符号元素可能失效了，所以选择合适的模式有助于为目标流程的执行环境定义适当的构件。
Some options and notational elements can be disabled in some modes, and selecting the appropriate model helps define appropriate artifacts for the target workflow execution environment.
当把一个分析过程模型和一个可执行过程实现联系起来的时候，这暗示了不要给图中的分析过程符号包括太多的复杂细节。
When linking an analysis process model with an executable process implementation, the clue is not to include too many of the sophisticated details of the analysis process notation in the diagram.
对于我们来说，最大的问题好像是关于BPMN图的执行语义；对其他人来讲，它只是一个图形符号，完全不需要我们操心执行的事儿。
For us, the major issues seem to revolve around the execution semantics of a BPMN diagram; for others, it is only a diagram notation and we needn't worry our little heads about execution.
段可以包含可执行代码、符号名称、初始数据值和许多其他类型的数据。
Sections can contain executable code, symbol names, initialized data values, and many other types of data.
通常缺少一种单一、可移植、可接受的业务流程执行标准和业务流程模型符号标准。
There's usually a lack of a single, portable, and acceptable standard for business process execution and business process model notation.
他也宣称我们应该完全放弃BPEL，而将精力放在有可能成功的方向：在符号之下再创建一个可执行的BPMN标准层。
He also argued that we should give up on BPEL altogether and focus on what appears to be the successful path: creating an executable BPMN standard layered underneath the notation.
在完成这些任务之后，生成的可执行文件会拥有一个列表，该列表列出了计划从运行期将加载的程序库中找出的那些符号。
Once those tasks are done, the resulting executable has a list of symbols it plans to look up from libraries it will load at runtime.
业务分析师使用象bpmn这样的建模语言，使用图形符号和BPMN属性；开发者使用象bpel这样的可执行语言。
The business analyst works in a modelling language like BPMN, using the graphical notation and the BPMN properties and the developer works in an executable language like BPEL.
另外，我们可以创建一个到可执行程序的符号链接，在执行这个符号链接时，就可以看到这个符号链接的名字。
Further, you can create a symbolic link to your executable, and you get the symlink name when it's invoked.
图形符号中的细节越细，它们与可执行语言匹配的机会就越小。
The finer details are used in the graphical notation, the less chance there is that they match with the executable language.
相反，使用 +或 *等符号定义可以执行普通数字加减法的函数。
Instead symbols like + or * are used to define functions that can do things like normal numerical addition and subtraction.
当所有建议的更新都得到执行，且更新的模板都得到保存时，roject Explorer中所显示的信息符号将会消失。
Information signs in the Project Explorer disappear when all suggested updates are performed and any updated templates are saved.
使用nm子命令获得符号的地址以及包含符号的可执行模块的TableOfContents (TOC)部分。
Use the nm subcommand to get the address of the symbol and table of Contents (TOC) section of the executable module that contains symbols.
import语句是可执行的，因此它可以放在需要的地方，同时避免导入不必要的符号。
The import statement is executable so it can be placed where needed, avoiding importing unnecessary symbols.
这是一个无符号整型，是执行size of操作的结果。
BusyBox使用了符号链接以便使一个可执行程序看起来像很多程序一样。
BusyBox USES symbolic links to make one executable look like many.
gdb将载入可执行程序符号并显示输入提示符，让您可以开始使用调试器。
The GDB will load the executable's symbols and then display an input prompt to allow you to start using the debugger. There are three ways to view a process with GDB.
执行函数时会为局部变量引入一个新的符号表。
The execution of a function introduces a new symbol table used for the local variables of the function.
当表达式执行，它从符号表中请求所需的值。
When the expression is executing, it requests from the symbol table the values needed.
当表达式执行，它从符号表中请求所需的值。
When the expression is executing, it requests from the symbol table the values needed.
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