夏尔马估计一个使用了四年的柴油内燃机60分钟内产生的炭能填满一个惠普墨盒。一个烟囱大约只需要10分钟。

Sharma estimates a 4-year-old diesel engine could produce enough carbon to fill an HP cartridge within 60 minutes. A chimney would take only 10 minutes approximately.

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从量上看，每一个惠普彩色打印机的墨盒里的墨水要比1985年的Dom Perignon葡萄酒还要贵。

By volume, the ink for an HP colour printer is more expensive than vintage 1985 Dom Perignon.

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并且惠普只有一件毫无争议的法宝：利润率约80%的打印机更换用墨盒的销售业务。

And HP has only one undisputed jewel: the business of selling replacement ink cartridges for its printers at profit margins of about 80%.

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