| 释义 |
blue lead
I. \-ˈlēd\ noun
Etymology: lead (gravel deposit)
: tertiary gold-bearing gravel deposits of the Sierra Nevada
II. \-ˈled\ noun
Etymology: lead (metal)
1. : galena
2. : a slate-gray pigment produced by subliming lead ore with coal or coke and used especially in rust-resistant paints — called also blue basic lead sulfate, sublimed blue lead |