大部分这些函数实际上是过程，因为它们现场修改它们的列表参数。
Most of these functions are actually procedures, however, because they modify their list argument in-place.
系统具有间隙补偿，子程序调用，图形显示，现场修改工艺参数等标准数控功能。
The CNC system used on the machine enables backlash compensation, subroutine call, graphic display, on-the spot change of machining data and the like standard CNC functions.
研制具有自处理功能的接口卡是技术关键，人——机对话、现场修改也是本系统的特点。
It is the key to design interface with self-processing function in this project. This system has also characteristics of man-computer dialogue and modification of the data at any time.
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