白热，炽热由一加热到发光的物体产生的光；白热。
A light produced by a body heated to luminosity; incandescence.
太阳是自己发光发热的炽热的气体星球。
分析了利用炽热钢板自身发光进行光学成像，采用高精度的线阵CCD作为测量传感器，对热轧中板宽度进行智能测量的专用红外光电仪表。
This paper presents a special infrared optoelectronic instrument for measuring the hot-rolled plate width, which USES the high accuracy linear CCD as the measuring detector.
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