Open constructions, which offer little resistance to soil penetration, may require more maintenance than tight constructions, which shed dirt.
稀疏的织物结构几乎对灰尘没有阻挡作用，在维护方面要比紧密织物结构复杂得多。
Open constructions, which offer little resistance to soil penetration, may require more maintenance than tight constructions, which shed dirt.
稀疏的织物结构几乎对灰尘没有阻挡作用，在维护方面要比紧密织物结构复杂得多。
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