有效光学密度范围 Useful density range
大气光学密度 optical density of atmosphere
显微光学密度计 microphotodensitometer
可变光学密度 varying optical density ; variable optical density
质量光学密度 mass optical density
光学密度计 [光] optical densitometer ; desitometer
云光学密度 optical density of cloud
平行光学密度 specular density
的光学密度 optical density
研制成功一种光纤烟气传感器，用于测量烟气的光学密度。
A kind of optical fiber smoke sensor which is used to measure the optical density of the smoke is introduced.
借助金属层，其光学密度已达到5.5。由于这种有机材料是负性光敏抗蚀剂，所以加工过程相当简单。
Its optical density, with help from a metallic layer, has been achieved at 5.5. Since this organic material is a negative photoresist, the fabrication process is rather simple.
近场光学存储器采用了纳米高新制作技术，具有极高的读出速度和极高的存储密度。
The near-field optical memory manufactured with high techique, and nanometer technique has very high memory density and high read-out rate.
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