工学 红外光学 释 infrared optics 红外光学 研究红外辐射的产生、传输、接收、信号转换、信息处理及应用的科学和技术问题。 理学 〔光的应用分支〕 释 infrared optics 红外光学 光学的一个分支，主要研究红外辐射在物质中的激发、传输及接收，物质中红外光到电的转化过程，电到红外光的转化过程，以及红外光之间、红外光与可见光之间的相互转化过程。
- unsafe condition
- unsafe events in flight test
- unsafe factor
- unsafe factors of road transportation
- unsalable books
- unsatisfiability
- unsatisfiable
- unsatisfiable set of formulas
- unsaturated
- unsaturated basin
- unsaturated bond
- unsaturated bond of mineral surface
- unsaturated color
- unsaturated fatty acid
- unsaturated fatty acids
- unsaturated flow
- unsaturated gain
- unsaturated groundwater flow
- unsaturated helium film
- unsaturated hydraulic conductivity
- unsaturated hydrocarbon
- unsaturated hydrocarbon complex
- unsaturated hydrocarbon coordination compound
- unsaturated polyester
- unsaturated polyester resin