美 [ˈpensl liːd]
铅笔芯：铅笔使用的材料（通常为黑色或深灰色）。通常是石墨和少量其他材料的混合物，但不是真正的铅。
mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil
同义词： lead
铅笔心(pencil lead), 此释义来源于网络辞典。
... pencil box文具盒 knife小刀 pencil lead笔心 ...
... 文件夹 file 笔芯 pencil lead 墨水 ink ...
Pencil Lead(铅芯), 此释义来源于网络辞典。
Do you think pencil lead will wash out of this white shirt?
你认为铅笔痕能从这件白衬衫上洗去吗？
Layers of graphene make up the graphite found in pencil lead.
铅笔芯里的石墨就是由多层石墨烯组成的。
A discovery made from pencil lead is promising to change the future of the electronics industry.
科学家一项从铅笔芯中作出的发现，势必将改变电子产业的未来。
The tiny bones, each about the thickness of pencil lead, were first spotted three years ago by a local caretaker in the outwash from a steep hillside near a well-known fossil site outside Kunming, China.
Belonging to a class of worlds known as diamond planets, 55 Cancri e is thought to be rich in the element carbon, which can exist in a variety of structural forms such as graphite (the material used as pencil lead), graphene, or diamond.
Each day he dotted the virtues he failed to fulfill with a black lead pencil.