Windmills from old car parts and car batteries and artificial sunlight from carbon arc lamps using pencil leads is possible, however.

可以从破旧的车辆里拆取风叶和蓄电池，再用铅笔芯制造弧光照明灯获取人工照明是有可能的。

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In theory, at atmospheric pressure and lower temperature chemical changes are liable to take place that change diamond into graphite, similar to the stuff pencil leads are made of.

理论上，在大气压及较低的压力下，化学物质的改变倾向于使钻石转变成石墨，与用于做铅笔芯的物质相似。

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The pencil I carry in my back-back is a silver-plated Eversharp with propelling leads, which my mother left in her drawer when she died.

我带在背包里的那支铅笔是“永利”牌镀银带可推动的铅笔头的，它是我母亲去世后留在她的抽屉里的。

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His job at Intel takes him to festivals and events such as the Bay Area Maker Faire, where he leads creative workshops on such activities as making digital circuits by drawing with a pencil.

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