Finally, the traditional burring and upsetting-burring processes for the thick sheet of aluminum alloy were verified.

最后，对铝合金厚板的传统圆孔翻边和局部镦粗圆孔翻边工艺进行了验证。

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XPT, as it is called, is a roughly 2cm-thick sheet of silica particles glued together with a strong, heat-resistant resin.

因为被称为XPT材料，是一个大约2厘厚米的二氧化硅粒子的薄板，与强大的耐热树脂粘在一起。

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The movement of welding seams of tailor welded blanks combined by different material and different thick sheet metal is studied in this paper.

本文研究由不同材料和不同厚度板材组合的拼焊板方盒件在拉深成形中焊缝的移动。

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But since the 1960s, satellites and aircraft with powerful radar devices have discovered more and more lakes buried kilometres beneath the thick ice sheet.

BBC: NEWS | Science/Nature | Secret rivers found in Antarctic

The Elfstedentocht takes place anytime the weather is cold enough that the canals connecting 11 cities in the province form a thick and relatively unbroken sheet of ice.

WSJ: Four Days Through Friesland

From a research station operated by the National Science Foundation called Summit Camp, a spot where the ice sheet is about 2 miles thick, GROVER will crawl at an average speed of 1.2 mph (2 kilometers per hour).

ENGADGET: NASA's GROVER eco-rover to examine Greenland's ice sheet (video)