| |||
铅字合金; 活字金 (50 ~ 90Pb, 2~30Sb,余量 Sn,有时加入 Bi) | |||
印刷合金 |
type metal : 48 phrases in 11 subjects |
Architecture | 3 |
Automobiles | 2 |
Aviation | 2 |
Earth sciences | 3 |
Electronics | 7 |
General | 2 |
Geophysics | 1 |
Librarianship | 4 |
Metallurgy | 5 |
Rail transport | 2 |
Technology | 17 |