Ʒչʾ
¹Ҷ
״ɫҺ壬
ܶȣ20棩0.900~0.950
۹ʣ20棩1.460~1.480
ȣ-2°40’~ +4°40’
¹ϩӡȳɷ99.9%
Ʒչʾ
ˮؽȻϳ ֧֣Ļ