The science of natural dialectics is of vital importance for the scientific research and engineering practice that they can not be overlooked. 摘要自然辩证法的科学性是指导科学研究和工程实践的重要依据，绝对不能被忽略，否则，就会出现混乱。
Part II has discussed the nature implication of Max practice dialectics and has expounded the inherent relation between practice dialectics and materialist dialectics. 第二部分详细论述了马克思实践辩证法的本质涵义并阐释了实践辩证法与唯物辩证法的内在关系。
