光学、声学 光学 visual line 视线 line of sight 视线†
line of sight 视线 sight 视线；观测，瞄准
line of sight; line of vision; visual line 视线
计算机应用 计算机辅助设计与图形学 释文 view ray 视线
- structural software system
- structural stability
- structural stability and bearing capacity test
- structural stability for missile/spacecraft
- structural stability problem
- structural statics
- structural static strength
- structural static test
- structural stealth composite material
- structural steel
- structural stiffness test
- structural stratigraphic unit
- structural strengthening cement-based material
- structural strength of flight vehicle
- structural style
- structural styles control of coal
- structural symmetry
- structural system
- structural system for steel building
- structural system of tall building structures
- structural tensor
- structural test
- structural theorem
- structural theory
- structural titanium alloy