| 单词 | quicksand |
| 释义 | quicksand [`kwik´sand] GEOLOGY A highly mobile mass of fine sand consisting of smooth, rounded grains with little tendency to mutual adherence, usually thoroughly saturated with upward-flowing water; tends to yield under pressure and to readily swallow heavy objects on the surface. Also known as running sand. MATERIALS A loose sand mixture with a high proportion of water, thus having a low bearing pressure. |
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