理学 水声探测 释 caustic 焦散 在射线声学理论中，使聚焦因子趋于无穷大的现象。使聚焦因子趋于无穷大的点称为焦散点，其邻近区域是射线管聚焦所致的声强急剧增强区，称为焦散区。射线族上由临近声线交聚点（焦散点）所形成的包络线称为焦散线，而由临近声线交聚线（焦散线）所形成的包络面称为焦散面。
计算机应用 计算机辅助设计与图形学 释文 caustics 焦散
- hyperbolic coordinate system
- hyperbolic corner
- hyperbolic cosecant
- hyperbolic cosine
- hyperbolic cosine integral
- hyperbolic cotangent
- hyperbolic cube
- hyperbolic curve
- hyperbolic cylinder
- hyperbolic cylinder coordinate
- hyperbolic cylindrical surface
- hyperbolic decline
- hyperbolic defect of a triangle
- hyperbolic differential equation
- hyperbolic differential operator
- hyperbolic differential system
- hyperbolic disc
- hyperbolic distance
- hyperbolic dodecahedron
- hyperbolic domain
- hyperbolic dynamical system
- hyperbolic dynamics
- hyperbolic element
- hyperbolic-elliptic integral
- hyperbolic-elliptic motion