Studies have found that the ultraviolet rays around 310nm have an excellent therapeutic effect on skin diseases
The electrical equipment used by electric traction locomotives to obtain electrical energy from the catenary is installed on the roof of the locomotive or motor car
The UVA band is a part of the ultraviolet wavelength division, the wavelength is 320 ~ 420nm, also known as the long-wave black spot effect ultraviolet
The ultraviolet germicidal lamp is actually a low-pressure mercury lamp. The low-pressure mercury lamp emits ultraviolet light by being excited
The flame radiation is gas radiation with a discrete spectrum and solid radiation with a continuous spectrum.
According to CCTV news, at about 9 o clock on September 11, an explosion occurred near the Baitengtouyi Hotel in Doumen District, Zhuhai City.
The new JRC NJU77903DL3H high endurance large output rail-to-rail input and output CMOS operational amplifier
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JRC operational amplifier NJU77903DL3-H high endurance large output rail-to-rail input and output CMOS