Which of these approaches is adopted depends on the concatenation of a number of factors.

些方法中究竟采用哪一,干相互联系的因素而定。

Metaphorical semantic extension takes place in the course of radiation, while metonymical semantic extension takes place in the course of concatenation.

通过隐喻思维引起的词义延伸主要通过辐射过来实现，而通过转喻思维引起的词义延伸主要通过链接过来实现。