gravel terrace 砾石阶地
A group of Quaternary gyttjor are discovered in Rimaqu basin in the Yellow River source area which formed the first terrace foundation, included gravel aleurite, aleurite and clay layer.
在黄河源区支流日玛曲河谷发现第四纪湖相沉积，以含砾粉砂、粉砂、粘土互层组合为特征，形成河流的第一阶地基座。
The upper floor features a small balcony on the end, while the lower level opens onto a gravel terrace complete with a fire pit.
上层的底端有一个小阳台，下层通往用火山灰堆积的砂砾梯田。
A large weathered steel vessel for swimming emerges from the natural desert adjacent to a shaded raised gravel terrace.
一个巨大的钢铁泳池从沙漠中漂浮起来，与附近的带遮荫的被高抬的砾石平台相得益彰。
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