The countryside undulates pleasantly.
原野起伏，景色宜人。
This draws a waving colored flag, that undulates its way around the screen.
绘制一面飘展的彩旗，在屏幕上四处飘动。
The price of steel and iron products and materials undulates fiercely on the current market.
当今的市场，钢铁产品和原材料的价格上下波动剧烈。
The seemingly repetitious simplistic form is actually one continuous surface that undulates to carve spaces underneath it.
看似简单重复的形式实际上是一个连续的表面，在起伏中分割其下方的空间。
Therefore, the research coal supply chain price undulates and forms the mechanism, has the important theory and the practical significance.
因此，研究煤炭供应链价格波动及其形成机制，具有重要的理论与现实意义。
In east Sichuan, surface condition is very complicated, landform undulates terribly, and the cropped anticline mostly consists of Permian and Triassic carbonate rocks.
川东地区地表条件极为复杂，地形起伏大，构造顶部多出露二叠系、三叠系碳酸盐岩。
In east Sichuan, surface condition is very complicated, landform undulates terribly, and the cropped anticline mostly consists of Permian and Triassic carbonate rocks.
川东地区地表条件极为复杂，地形起伏大，构造顶部多出露二叠系、三叠系碳酸盐岩。
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