一根头发丝也有自己的影子。
一根头发丝也有自己的影子。
削木需要非常精准和平滑，甚至一根头发丝的缝隙都不能有。
The cutting should be so precise and smooth that even a thread of hair cannot slip through the cracks.
这些被蚀刻在标准硅晶圆中的渠道直径大约有50微米(一根头发丝的直径)。
These channels, which have a diameter of 50 microns (about the width of a human hair) are etched using standard silicon fabrication.
想要从月球看到中国的长城，你的视力必须得能从两英里外看清楚人的一根头发丝儿。
To see the Great Wall of China from the Moon you would have to be able to discern a human hair from two miles away.
该材料是一种由碳纳米管组成的薄涂层——这些碳纳米管是中空多壁的，比一根头发丝还要细一万倍。
The material is a thin coating of carbon nanotubes - hollow and multi-walled tubes about 10, 000 times thinner than a strand of human hair.
该材料是一种由碳纳米管组成的薄涂层——这些碳纳米管是中空多壁的，比一根头发丝还要细一万倍。
The material is a thin coating of carbon nanotubes - hollow and multi-walled tubes about 10,000 times thinner than a strand of human hair.
美国夏威夷大学的纳米技术专家日前制造出世界上体积最小的刷子，他们说这种刷子的刷毛只有一根头发丝的千分之一那么细。
University of Hawaii nanotechnology experts have invented the world's smallest brush - a device boasting bristles a thousand times finer than a strand of human hair.
在她粉色的头皮上，一团浅银色的发丝中有一根黑头发。
Anchored in her pink scalp is a black hair surrounded by platinum strands.
在她粉色的头皮上，一团浅银色的发丝中有一根黑头发。
Anchored in her pink scalp is a black hair surrounded by platinum strands.
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