使得头文件安全的通用做法，是使用预处理器定义头文件保护符。
A common way to make headers safe USES the preprocessor to define a header guard.
上面提到的原生css特性绝大多数在目前还没有得到很好的支持，因此，在很多情况下，如果可维护性很重要(它确实很重要)，使用预处理器是不可避免的。
Because most of the aforementioned native CSS features are not well supported today, in many cases using preprocessors is unavoidable if maintainability matters (and it should).
用于DB 2数据访问的EmbeddedSQL方式需要使用应用程序预处理器，将所有SQL引用转换为DB 2服务器的本机访问接口。
The Embedded SQL approach for DB2 data access involves the use of an application preprocessor to translate and replace all of the SQL references with native access interfaces to the DB2 server.
最佳的机制可能取决于开发环境，可以使用(比如)预处理器、注释或helper对象实现。
The best mechanism may depend on your environment and could be implemented using, for example, preprocessors, annotations, or helper objects.
而使用WebSphereFederationServer作为数据预处理器的t -ETL版本的作业则仅执行了12分11秒(731秒)，执行时间节省了大约83%。
The T-ETL version of the job that USES WebSphere Federation Server as a data pre-processor executes in just 12 mins 11 secs (731 seconds), an elapsed time saving of approximately 83 percent.
我的建议是，在每个项目开始时使用纯css，只有当代码开始变得无法保持DRY时，才切换到预处理器的方案。
My advice would be to start off every project with pure CSS, and when it starts being impossible to keep it DRY, switch to using a preprocessor then.
未定义的符号与预处理器指令一起使用。
A symbol that was not defined was used with a preprocessor directive.
因为%被宏预处理器广泛使用，你要确保有符号或无符号求余运算符应该紧跟着空格。
Since the % character is used extensively by the macro preprocessor, you should ensure that both the signed and unsigned modulo operators are followed by white space wherever they appear.
重点阐述水喷射式乳化器和管道混合器组成的PS系列煤浆预处理器工作原理、结构参数的研究，并介绍了该系列设备的规格和使用情况。
The study of the working principle and structure parameters of PS-Series coal slurry preprocessor composed of water-jetting emulsor and tube mixer was main described in the paper.
正如其他的预处理器变量一样（第2.9.2 节），不可以使用NULL这个标识符给自定义的变量命名。
As with any preprocessor variable ( Section 2.9.2, p. 71) we should not use the name NULL for our own variables.
C和c++程序静态分析工具可能包括检查未使用的预处理器宏。
Static analysis tools for C and C++ programs may include a check on unused preprocessor macros.
虽然没有使用-i选项让预处理器查找当前目录，你也使用了- L选项让链接器去查找当前目录。
Although you don't have to use the - I option to get the preprocessor to search the current directory, you do have to use the -l option to get the linker to search the current directory.
虽然没有使用-i选项让预处理器查找当前目录，你也使用了- L选项让链接器去查找当前目录。
Although you don't have to use the - I option to get the preprocessor to search the current directory, you do have to use the -l option to get the linker to search the current directory.
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