含糊是相对于精确而言的,含糊与精确是一对矛盾,是对立统一的。含糊是绝对的,客观存在的,而精确是相对的,是含糊范畴中的一部分。在一定条件下它们之间又可以相互转化;当含糊达到一定精确度时,含糊就转化为精确,达不到一定精确度,精确也就成为含糊。而化学是一门自然学科,它是随着人的认识由浅到深,由含糊到清晰而不断发展的,体现在从宏 Vagueness is relative to the precise, ambiguity and precision is a contradiction, is the unity of opposites. Vagueness is absolute, objective, exact but relative, and is part of vague categories. Under certain conditions, they can be transformed into each other. When the ambiguity reaches a certain degree of accuracy, the ambiguity is transformed into an accurate one, failing to reach a certain degree of accuracy, and the accuracy becomes ambiguous. Chemistry is a natural discipline, it is with the people’s understanding from light to deep, from vague to clear and continuous development, reflected in the macro