这是因为实际的源代码和变量绑定可以更改，这是建立在环境或者构建宏预处理程序指令的时间定义的基础上的。
This is because the actual source code and the variable binding can change, based on the environment or the build time definitions of macros and preprocessor commands.
我们假定程序中指令执行所花费的时间是可以忽略的，但实际上它还是会引入一些偏差。
We assume that the time spent executing the instructions in the program is negligible, but there is a slight bias introduced by that time.
此应用程序的响应时间必须很短：规定为发出指令后3秒内。
The application's response time needs to be very short: As stipulated, it is to be on the order of three seconds.
在对指令系统分析和研究的基础上，设计和实现了指令的解释执行系统。并设计和实现计算程序执行时间的函数。
Based on the analysis and research on the instruction system, this paper designs and realizes the interpretation system for instructions, and also the functions which compute program running time.
没有规则的时间关系，对程序指令的执行是无法预料或不可预测的。
Without regular time relationship; unexpected or unpredictable with respect to the execution of a program's instructions.
它还意味着该程序将因为在大多数时间问题将会被停止以等待数据返回而无法有效地执行指令。
It also means the program will not be effectively executing instruction since most of time the problem will be stalled waiting for data return.
当控制机将一条工艺程序段指令发完之后，伺服系统运动对指令值指定的位置还需多少时间的问题进行了计算。
This article deals with the calculation of the time needed for the servosystem to move to a certain place, after the controlling machine sent out the instructions.
在传统编译器中，指令选择往往采用动态规划的方法，其目的是优化目标代码性能(减小程序运行时间)。
Instruction selection of traditional compilers often adopts the dynamic programming technology to optimize the object code performance (reducing code running time).
在传统编译器中，指令选择往往采用动态规划的方法，其目的是优化目标代码性能(减小程序运行时间)。
Instruction selection of traditional compilers often adopts the dynamic programming technology to optimize the object code performance (reducing code running time).
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