wreath filament是什么意思

网络释义

1)wreath filament,屈折螺旋灯丝2)helix heater,螺旋灯丝3)single-coil lamp,单螺旋丝灯4)spiral filament,螺旋形灯丝5)spiral filament,螺旋式灯丝6)single-coil filament,单螺旋灯丝