只有四个姿势被发现在不借助“辅助器械”下可能实现。另外六个需要借助特殊的弹性带和同一端开口的睡袋一样的可膨胀的管道。

Only four positions were found possible without "mechanical assistance". The other six needed a special elastic belt and inflatable tunnel, like an open-ended sleeping bag.

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五年来，拉丁美洲的经济保持着5%的年均增长率，通货膨胀普遍较低，但之后它们却在2009年面临着一次针对其新立弹性机制的严峻挑战。

After five years in which Latin America's economies have averaged 5% annual growth with generally low inflation, they face a severe test of their new-found resilience in 2009.

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膜盒，内含低压空气的密封弹性装置。当它周围的压力变化时，会膨胀或收缩。

ANEROID, a sealed flexible device containing air at low pressure, which expands or contracts during change of pressure outside the device.

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