Ancient icebox discovered in Shaanxi_科学技术

Ancient icebox discovered in Shaanxi

文章来源：文章作者：发布时间：2007-07-05 03:05 字体： [大中小]　进入论坛

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Chinanews, Xi’an, July 5 – According to a report by CCTV, a structure in the Changle Palace in the ruins of Changan of the Han Dynasty (206 BC – AD 220) has been confirmed to be an ancient icebox.

The walls of the icebox are very thick, the one facing the south even as thick as 5.5 m for thermal¹ insulation². There are 3 channels outside the icebox, for discharging the melt water, all leading to a pentagon pool.

It is estimated that the ice was collected in winter from the Wei River nearby, so in summer the royal family members could enjoy cool drinks and fresh food. Some ice might also be used on ceremonial occasions.

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1 thermal
adj.热的，由热造成的；保暖的
参考例句：
They will build another thermal power station.他们要另外建一座热能发电站。 Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。

2 insulation
n.隔离；绝缘；隔热
参考例句：
Please examine the insulation of the electric wires in my house.请检查一下我屋子里电线的绝缘情况。 It is always difficult to assure good insulation between the electric leads.要保证两个电触头之间有良好的绝缘总是很困难的。

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