filament : 111 phrases in 16 subjects |
Agriculture | 2 |
Antennas and waveguides | 3 |
Chemistry | 2 |
Coal | 2 |
Earth sciences | 6 |
Electronics | 41 |
General | 8 |
Health care | 2 |
Immigration and citizenship | 1 |
Industry | 22 |
Life sciences | 1 |
Medical | 7 |
Metallurgy | 1 |
Natural sciences | 5 |
Patents | 3 |
Transport | 5 |