Fortunately for them, a local artist heard of their plight and offered to build a life-sized group of identical penguins out of sand.
后来他们终于交了好运，本地一位艺术家听说这一故事之后，决定制作一些与实体同样大小的沙雕企鹅。
By the looks of it, the fossilized foot impressions seem identical to the ones we make when walking across the sand.
这些脚印的迹象，看来与我们现在走过沙滩时留下的足迹是一样的。
If the strength and workability are approximate identical, concrete tends more easily to crack with the increasing sand rate.
在强度和工作性相当的情况下，随着砂率的增大，混凝土出现裂缝的机会增加了。
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