求翻译：CPU按照预先编译的程序进行换算和比较后，需要输出的数字信号通过模拟量输出模块转换相应比例的模拟量电流或电信号，对执行机构进行控制或调节，达到控制目的 。是什么意思？

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CPU after the procedure which translates in advance carries on the conversion and the comparison, needs to output the digital signal transforms the corresponding proportion through the simulation quantity output module the simulation quantity electric current or the electrical signal, carries on the

CPU according to the advance after conversion and comparison of the compiled program, you need to output digital signals by analog output module into the appropriate proportion or analog current signals, to control or regulate the Executive Body, to control purposes.

CPU according to the advance after conversion and comparison of the compiled program, you need to output digital signals by analog output module into the appropriate proportion or analog current signals, to control or regulate the Executive Body, to control purposes.