1. Mutual Factor is divided into mutual space/distance factor, mutual intercourse frequency factor, mutual similarity factor, mutual complementary factor and mutual adoration factor. 双方互动因素被分成双方空间距离因素、双方交往频率因素、双方相似因素、双方互补因素和相悦因素；
2. It mainly exists historical factors: foreign factor, social factor, cultural factor, market factor, political factor, legal factor and so on. 其产生的原因是多方面的，主要有历史因素、外来因素、社会因素、文化因素、市场因素、政治因素、法制因素等。
3. Paper use causal relationship test method has proven causal relationship between the variables and establish error correction model. 论文运用格兰杰检验法证明了变量之间具有因果关系，并建立误差修正模型。
4. Between the different ornaments there is no causal relation. When you re-melt an ornament to make another, there is no causal relation between the two. 不同的金饰之间并无必然的关系。当你将一件金饰熔化再打造另一件，两件之间也没必然关系。
5. All the causal reasoning can only be rationally justified on the basis of the assumption of an immutable causal order but cannot be justified by reference to evidence by empirical investigation. 所有的因果推理只能以一个不变的因果顺序假定为基础做出理性判断，而无法参考实证研究的证据进行判断。
