| |||
guttapercha; gettama gum | |||
gutta | |||
Chinese gutta percha | |||
gutta percha | |||
gutta-percha | |||
eucommia ulmoide | |||
| |||
gutta-percha | |||
| |||
gutta percha |
杜 仲胶 : 12 phrases in 9 subjects |
Architecture | 1 |
Chemistry | 1 |
Construction | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Metallurgy | 1 |
Plastics | 2 |
Polymers | 2 |
Technology | 2 |