A lump of graphite or a diamond will sit happily on a laboratory bench without bursting into flames, or even rusting, and is impervious to the action of water.
It is, though, surprisingly inert. A lump of graphite or a diamond will sit happily on a laboratory bench without bursting into flames, or even rusting, and is impervious to the action of water.
一块石墨或钻石可以放在实验室的长凳上而不会自燃，甚至不会生锈，也不会受到水的影响。
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Graphite rods are extremely lightweight, which creates a definite advantage for long days on the water.