Most portion of hypocotyl has the characteristic of the primary structures of its root and stem.

下胚轴大部分区段同时具有根、茎初生结构的特征。

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This result suggests that the primary structures of the kairomone protein and silk protein from B. mori are similar, both containing a crystalline (precipitate) and a amorphous (supernatant) region.

这显示在野蚕和家蚕利它素结构中，有着与家蚕丝蛋白相类似的结构，存在着结晶区域（沉淀）和无定形区域（上清）。

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Web pages degenerated into inaccessible, complex structures of nested tables as the primary way to control page layout.

网页变得难以理解，复杂的嵌套表结构成为控制页面布局的主要手段。

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We have lost 26 primary structures.

NPR: Western Wildfires Reach into Montana

One technology highlighted by NASA is solid freeform fabrication, a process that could be used to support fabrication and repair of large space structures, spacecraft primary structure and replacement components.

MSN: Future astronauts may rely on made-in-space parts

"There are some areas that relied on sophisticated and complex structures, where transactions were carried out with the primary objective of accessing the tax benefits, " Mr Jenkins is expected to say on Tuesday.

BBC: Barclays to close 'tax avoidance' unit