东加那利群岛地块是内围层的一个例子已完全确实，它在地形上与相邻的大陆有关。
The East Canary Islands block is an example of an island inlier with a morphologically well defined relation to its adjacent continent.
与电线四周围的橡胶绝缘层相类似，髓鞘环绕着发送信息的轴突，保护和加快着电脉冲。
Like rubber insulation around electrical wires, myelin wraps around message-sending axons, protecting and speeding electrical impulses.
可以把铀做成棒状放在原子反应堆内，在铀棒的四周，围一层中子减速剂即节速剂。
The uranium may be put into the reactor in the shape of rods and the rods surrounded with a neutron-slower or moderator.
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