The extraction of soil erosion in complex topographical region is much more difficult than that in flat region.

相对与地形平坦地区，复杂地形区土壤侵蚀的提取存在较大的难度。

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The frequency response of the drive-direction oscillator has two resonant peaks and a flat region between the peaks.

陀螺驱动频率响应曲线有两个谐振尖峰，在两峰值之间存在一个较平坦的区域。

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In that region small breasts are not the sign of sickness, they are the sign of (a little bit depressing and flat) normality, and it almost cost thousands of ladies the use of their Vespas.

在那些地区，小胸只是常态，而非病态，这一禁令几乎使数千位女士无法使用她们的小型摩托车。

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The BBC and others noted, for example, when a flat region was hidden under a "carpet", when the carpet hid a 3D object, and when the carpet was dispensed with and a 3D object was hidden in "free space".

BBC: Invisibility cloaks: Will we ever really have them?

Although some of its rivals, notably Volkswagen of Germany and Hyundai of South Korea, have come through the terrible past year relatively unscathed, Toyota's market-share has either fallen or been flat in every region in which it operates except Japan a market that was shrinking well before the crisis struck.

ECONOMIST: Struggling giants

For 2013, management expects the same-store sales to be in the region of flat to low single-digit, excluding the impact of rise in menu price.

FORBES: Chipotle Reports Spicy Growth Though Margins Head South