Found outside Baghdad, Iraq in 1936, the Baghdad Battery is a small clay jar containing an iron rod suspended in a copper cylinder which is soldered shut and sealed with asphalt.

1936年在伊拉克巴格达郊外发现的巴格达电池由一根小铁棍悬空在一个由沥青密封的铜制容器中，该容器置于一个陶土罐里。

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Its model involves a two-mirrored system that directs sunlight down an optical rod onto a small (1 square centimeter) photovoltaic cell.

它的模型有一个双面镜像系统。该系统直接把阳光投射进一块小型(1平方厘米大小)光伏电池的光学感应棒上。

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Halfway up the hill, he saw an elephant coming down, with a small bundle of leaves on its back and a mahout poking its ear with an iron rod.

就在上到半山腰的时候，他看到了迎面走过来一头大象，大象背上背着一小捆树叶，旁边看象人拿一根小铁棒在拨弄着它的耳朵。

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To work its makeover magic, William Morris says it plans to set A-Rod up with a relatively small number of corporate clients that it sees as a good fit, with an emphasis on the Hispanic market.

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