Table 1. Weighting Score of Different Expert Factors.

Factors	Classification	Weighting Score
Age (a)	< 30 years old	1
	30–39 years old	2
	40–49 years old	3
	≥ 50 years old	4
Education background(b)	High school	1
	Junior college	2
	Bachelor	3
	Master	4
	PhD	5
Service year (c)	< 5 years	1
	5–10 years	2
	11–20 years	3
	21–30 years	4
	≥ 30 years	5
Professional Position (d)	Worker	1
	Technician	2
	Junior academic/engineer	3
	Senior academic/engineer	4