1. Reasonable use of cutting tools: For different workpiece materials and processing requirements, it is necessary to choose different cutting tools to achieve better processing results.

2. Tene equipamentum mundum: necesse est puritatem et optimum conditionem equipationis conservare, et custodiat illum regular ut functionem normalem esset.

3. Reasonably set processing parameters: For different workpiece materials and processing requirements, it is necessary to set processing parameters reasonably to achieve better processing results.