观察灯丝
Viewing filament
以上为机器翻译结果，长、整句建议使用 人工翻译 。
为了观察由板流引起的灯丝温度下降现象，利用红外测温仪对理想二极管灯丝温度作了精密测量。
In order to observe the phenomenon of the filament temperature drop caused by the board-current, the ideal diode filament temperature was detected precisely with an infrared thermometer.
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