Senses
焦点/ 焦點 focus (attention)
the central point of attention or interest; the crux of a matter
焦点/ 焦點 focus (optics)
the point at which rays of light or other radiation meet after being reflected or refracted; focal point
焦点/ 焦點 focus (geometry)
one of the fixed points used in the definition of a conic section such as an ellipse, hyperbola, or parabola
References
No references for this word.