| |||
planting hole | |||
defect electron; hole; positive hole | |||
depression; pot-hole | |||
hollow |
buca : 32 phrases in 9 subjects |
Agriculture | 1 |
Astronomy | 3 |
Construction | 1 |
Earth sciences | 9 |
Electronics | 11 |
Industry | 1 |
Materials science | 2 |
Mechanic engineering | 1 |
Scientific | 3 |