information about Drill field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Engineering 23.9M papers | Materials science 18.2M papers | Mechanical engineering 5.3M papers | Metallurgy 4.7M papers |
| Current | |||
Drill 33.4k papers | |||
| Child | |||
Drill pipe 4,414 papers | Drill bit 3,598 papers | Drill string 3,167 papers | Drill hole 1,815 papers |
Deep hole drilling 1,615 papers | |||
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History