Through analyzing and accounting evocable error of tool's transmutation during milling process,the compensatory method to the error in NC machining has been put forward.
This showed constitutor of standard of our country accounting complies with international trend, the manner that standard of accounting of hope our country draws close to international convention.
Those enterprises keep books at planned cost or norm cost in daily accounting shall account for the coit variances and adjust planned cost (or norm cost) into historical cost periodically.