| physics laboratory(expression, beam, radiate, rays) |
| positive rays(expression, radiate, rays, electronics) |
| proofing(noun, use, tool, ray, radiation) |
| radio(noun, ray, physics, technics) |
| radioautograph(noun, use, tool, ray, radiation) |
| radiograph(noun, ray, physics, technics) |
| ray-optics method(expression, radiate, rays, electronics) |
| ray-path trajectory(expression, chemistry, rays, radiation) |
| ray axis(expression, radiate, rays, electronics) |
| ray course(expression, radiate, rays, electronics) |
| ray direction(expression, radiate, rays, electronics) |
| ray focusing(expression, chemistry, rays, radiation) |
| ray optics(expression, radiate, rays, electronics) |
| ray propagation(expression, radiate, rays, electronics) |
| ray slope(expression, radiate, rays, electronics) |
| ray tracing(expression, radiate, rays, electronics) |
| record(noun, use, tool, ray, radiation) |
| recorder(noun, ray, physics, technics) |
| refraction(noun, use, tool, ray, radiation) |
| residual rays(expression, chemistry, rays, radiation) |