This time, instead of using charred paper, he took several strands of cotton, twisted these together into the shape of hairpin, and charred, or carbonized, this filament in an oven.
这回他不用烧焦的纸，而代之以几股棉线。他把几股棉线搓在一起，呈发夹状，然后把已搓成的灯丝放在炉内烧焦，也就是使之碳化。
This time, instead of using charred paper, he took several strands of cotton, twisted these together into the shape of hairpin, and charred, or carbonized, this filament in an oven.
这回他不用烧焦的纸，而代之以几股棉线。他把几股棉线搓在一起，呈发夹状，然后把已搓成的灯丝放在炉内烧焦，也就是使之碳化。
应用推荐