He added that this was a "serious boundary" to online growth that should be removed.

他补充说，这是网络增长一个很严重的边界。

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This layer of greenery regulates the internal climate, encourages the growth of plants for food and distinguishes a boundary between inside and outside.

这一层绿色植物调节内部气候，支持可食用植物的生长，并区分内部和外部之间的边界。

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The criterion of rock failure and inner boundary condition need to be considered carefully while processing the fault growth, movement and deformation.

断裂的发生、运动与变形涉及岩石破裂准则与内部边界处理。

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The urban growth boundary -- established in 1979 as a way to reduce sprawl and encourage more compact growth -- is the framework around which other political decisions and compromises are made.

CNN: Polluted rivers stain Portland's image

"We're going to make better use of land that's already in the urban growth boundary, " Bragdon says.

CNN: Polluted rivers stain Portland's image

Metropolitan Portland's 1.5 million population is already putting pressure on housing needs within the urban growth boundary, and another 700, 000 people are expected to move to the area during the next 20 years.

CNN: Polluted rivers stain Portland's image