Not only does the GDP mask this erosion, it can actually portray it as an economic gain: an oil spill off a coastal region "adds" to the GDP because it generates commercial activity.

GDP 不仅掩盖了这种侵蚀现象，它实际上还可以将其描述为一种经济收益：沿海地区的石油泄漏“提升” GDP，因为它产生了商业活动。

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A small undesired hole in an oxide opaque region of a mask or reticle or in a photoresist layer.

氧化物、掩模或标线的不透明区域，或光刻层中不需要的小孔。

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According to the known mask, image can be separated into target region and source region.

该方法根据已知的蒙板图像，将图像分为目标区域和源区域。

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The mask is designed so that light passing through its thickest region is slowed by exactly two cycles compared with that passing through its thinnest.

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