在实践中总结经验，并不断改进，教学效果反映良好。
Lessons learned in practice and the continuous improvement of teaching results reflect good.
具体加入量是与基础油的品种结构、加工深度、是否已加添加剂等多种因素有关，需要在实践中总结经验。
Dosage is based on the specific oil product structure, processing depth, whether the additive and other factors, need to practice lessons learned.
具体加入量是与基础油的品种结构、加工深度、是否已加添加剂等多种因素有关，需要在实践中总结经验。
Dosage is based on the specific oil product structure, processing depth, whether the additive and other factors, need to practice lessons learned.
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