这个板块是在两边生长的，由于没有中间的沟槽，两个脊必然是分开的。

This plate is growing on both sides, and since there is no intermediate trench, the two ridges must be moving apart.

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科学家们表示，他们惊奇地看到海脊两边的动物是多么的不同。

Scientists said they were surprised to see how different the animals were on either side of the ridge.

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我们不喜好如许的盘边，盘边必需是脊状的。

We don't like the rim. The rim should be ridged.

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