But red sandstone is widely distributed in China, especially existed in large quantity during highway construction in mountain area.
但红砂岩在我国分布较广泛，尤其在山区公路建设中大量存在。
But red sandstone is widely distributed in China, especially existed in large quantity during highway construction in mountain area.
但红砂岩在我国分布较广泛，尤其在山区公路建设中大量存在。
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