从操作数堆栈获取所需的操作数。
前缀表示法中，操作符写在操作数的前面。
In prefix notation, the operator is written before its operands.
在后缀表示法中，操作符位于操作数后面。
用于填充和操作数据图的API。
后端这一层负责保存和操作数据。
The back-end tier is responsible for persisting and manipulating data.
来自操作数据库和应用程序的信息。
探查数据库，操作数据库对象。
仓库数据的建模与操作数据库的建模。
源操作数和目的操作数的顺序。
这两条指令对自己的两个操作数逐元素进行比较。
These instructions perform element-by-element comparisons of their two operands.
XML已成为传递和操作数据的主流技术。
XML becomes the mainstream technology for transferring and manipulating data.
所有编程的核心都是创建和操作数据结构。
The heart of all programming is the creation and manipulation of data structures.
这是在一个时钟周期内必须完成的操作数量。
This is the number of operations that must be completed in a single cycle of clock time.
编译器在自己生成的汇编语言中提供了适当的操作数。
The compiler supplies the appropriate operand in the assembly language code it generates.
数据模型将指定用于操作数据的信息和规则。
The data model will specify the information and the rules that you can use to operate on that data.
问题在于乘法指令的结果可能会有其操作数的两倍之长。
The problem is that the result of a multiply instruction can be twice as long as its operands.
输出操作数是将对其执行汇编指令输出的C表达式。
The output operands are the C expressions on which the output of the assembly instructions will be performed.
WSS运行时模拟器通过MBean操作数据。
字节码使用一个理论上无限大的操作数堆栈来描述计算。
Bytecodes describe calculations using a theoretically infinitely large operand stack.
有些指令包含立即操作数值，它们被直接编码到指令中。
Some of the instructions include immediate operand values that are directly encoded into the instruction.
操作数的顺序与等价的中缀表达式中操作数的顺序一致。
The operands are in the same order that they would be in the equivalent infix expression.
现在让我们看一下如何将个别寄存器作为操作数的约束指定。
Now let's take a look at how to specify individual registers as constraints for the operands.
输入操作数是充当指令输入操作数使用的C表达式。
The input operands are the C expressions that serve as input operands to the instructions.
每个表达式仅根据其操作数来返回值，并且都不会产生副作用。
Each expression returns a value that depends only on the operands of the expression, and no expression has any side effects.
在所有指令中，先是源操作数，然后才是目的操作数。
In any instruction, source comes first and destination follows.
企业中可能存在数据副本，这会影响操作数据的准确性。
Potential existence of data duplication in the enterprise, which compromises operational data accuracy.
一旦确定操作数和操作符后，就可以执行运算了，如清单12所示。
When we determine the operands and operator, we can perform the operation, as shown in Listing 12.
数据库是复杂的，需要一个有效的计划来创建及操作数据库。
Databases are complex, which demands an effective plan for creating and working with them.
我们描述了使用其表达式语言(EL)来访问数据和操作数据。
We described the use of its expression language (EL) to access data and operate on it.
如果您不能够弹出两个操作数，后缀表达式的语法就不正确。
If you could not pop two operators, the syntax of the postfix expression was not correct.
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