diople-quadrupole interaction
偶极-四极相互作用

• foam rubber
• focal
• focal area
• focal chord
• focal circle
• focal collimator
• focal cusp
• focal depth
• focal distance
• focal eikonal
• focal isolation
• focalization
• focalizer
• focal length
• focal line
• focal plane
• focal plane filter
• focal plane shift
• focal plane shutter
• focal plates, reticles
• focal point
• focal power
• focal ratio
• focal sphere
• focal spot