information about Barrel (horology) field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Engineering 24.7M papers | Materials science 18.8M papers | Geography 11.5M papers | Composite material 8.9M papers |
History 7.1M papers | Archaeology 6.5M papers | Mechanical engineering 5.4M papers | |
| Current | |||
Barrel (horology) 12.6k papers | |||
| Child | |||
Muzzle 2,620 papers | |||
Trends