The pavilion is located in the Theme Pavilion building in Zone B. The top of two parallel spiral ramps offers a good view of a 32-meter- diameter globe.

展馆位于B片区主题馆内，展示空间主要是两条对称的螺旋状坡道，参观者可以在其顶端俯瞰直径达 32米的巨型球冠。

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Circles are drawn in top and bottom halves, from largest diameter to smallest.

圆形按直径从最大到最小绘制在上半部和下半部。

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The idea being that the tree needs the same total vein diameter from top to bottom to properly irrigate the leaves.

他们认为，树木将水分输送至叶片的整个过程中，具备的总叶脉直径应当是相同的。

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Driven by a six-blade mahogany fan (see top picture) with a diameter of 9.1m, the tunnel was used to test full-sized aircraft prototypes like the Spitfire.

BBC: NEWS | UK | Magazine | Concrete steeped in history

He and his group realized they could grow silicon wires--chains of silicon crystals 2 to 20 nanometers in diameter and typically 10 microns long--on top of nanosize flakes of gold.

FORBES: Innovators

Early estimates put it at 20ft (6m) deep and 30ft in diameter but officials have created a 100ft-wide safety zone fearing the top of the sinkhole is growing.

BBC: Florida sinkhole: Search for Jeffrey Bush called off