便携式钨丝电热原子吸收光谱仪
portable tungsten coil electrothermal atomic absorption spectrometer
带状钨丝灯
ribbon filament tungsten lamp
敷钍钨灯丝
thoriated tungsten filament
涂钍钨灯丝
thoriated tungsten filament
钍钨灯丝
thoriated tungsten filament
充气双绞丝灯泡
gas-filled dual coil lamp bulb