In this paper, a special wavelet transform used to analyze snapped section surface image of three-dimensional braided composite material and detect the fiber volume fraction is proposed.

提出了一种基于一类特殊小波变换对三维编织复合材料拉伸断面进行图像处理、测量复合材料纤维体积含量的方法。

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The invention adopting the technical scheme has the advantages of high mixing efficiency between air and gas, short flame length during the combustion and large section surface of flame.

由于采用了上述技术方案，本发明具有使空气和煤气混合效率高，燃烧时火焰长度短、火焰截面积大的优点。

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The surface of a section of Route 101, paved two years ago by McAdam Road Builders, is now badly cracked and marred by dangerous potholes.

92两年前由McAdam筑路公司修筑的101公路的一段，表面现已严重开裂，并存在危险的坑洼。

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It had been left raised up to 4ft (1.2m) along a 0.6-mile (1km) section, about 300ft (91m) below the surface.

BBC: Shell claims progress on North Sea oil leak

When a section is highlighted, a preview of its contents float beneath the surface of the interface, scurrying to the top when their parent option is selected.

ENGADGET: Steam Big Picture beta hands-on HD