| Diffusion | |
| gen. | diffusion; spreading |
| anal.chem. | diffusion |
| construct. | diffusibility |
| emerg.care | diffusion |
| energ.ind. industr. | scattering |
| environ. | diffusion |
| IT | diffusion,cryptographic diffusion |
| phys. | diffusing |
| tech. | diffusion |
|
Knudsen : 18 phrases in 9 subjects |
| Automated equipment | 1 |
| Chemistry | 2 |
| Earth sciences | 2 |
| General | 1 |
| Measuring instruments | 2 |
| Optics branch of physics | 1 |
| Physics | 6 |
| Technology | 2 |
| Transport | 1 |