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.
一个人手指上的脊状结构不会随着生长而改变，也不会受到表面损伤的影响。
The ridge structure on a person's finger doesn't change with growth and is not affected by superficial injuries.
在其他情况下，较细的颗粒可能被除去，而沙粒大小的颗粒堆积起来形成移动的山丘或沙脊。
In other cases, the finer particles may be removed, while the sand-sized particles are accumulated to form mobile hills or ridges of sand.
我们相信，也许不可思议的是，这一争论可以通过进一步的研究得到解决，而尚未得到充分探索的海中脊系统是关键。
We believe, perhaps unimaginatively, that this debate can be resolved through further study, and that the underexplored midocean ridge system is the key.
我设法爬上了一个潮湿的倾斜岩脊。
他设法抓住了岩面下方40英尺处的岩脊。
He managed to cling on to a ledge 40 feet down the rock face.
我在岩脊上站稳。
很难看出这个理论如何适用于大西洋中脊和印度洋脊之间的板块。
It is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean.
肋脊角可有压痛。
指甲上的垂脊意味着可能缺铁
Vertical ridges on the nail mean a possible iron deficiency.
我们当然看到了海脊南北区域差异的迹象。
We certainly see indications that there are differences between the north and south regions of the ridge.
当冰川和海脊分开，冰流速度就大大加快。
When the glacier became detached from the ridge, the ice flow was able to accelerate significantly.
船一直保持很长的船脊和船肋，好像鱼类的胸腔。
Boats have long had spines and ribs like an animal's ribcage.
全球消灭脊灰行动的目标是。
The objectives of the Global Polio Eradication Initiative are.
阿拉伯沙漠上一座高耸的沙丘脊指向着午后的落日。
The towering ridge of a sand dune in the Arabian Desert points to the afternoon sun.
其结果便是：沿着大洋中脊形成了海底山脉和山丘。
The result: underwater mountains and hills all along the axis of the mid-ocean ridge.
它的存在完全取决于地质学家所称的中大西洋海脊。
Its existence depends entirely on what geologists call the mid-Atlantic ridge.
消灭了脊灰每年会为世界节省数十亿美元。
Polio eradication will save the world billions of dollars each year.
需要有大量财政资源来支持消灭脊灰活动。
Substantial financial resources are required to support polio eradication.
我们已经根除了三种野生脊灰病毒菌株之一。
We have already eradicated one of the three strains of wild polio virus.
脊灰(脊髓灰质炎)主要影响五岁以下儿童。
Polio (poliomyelitis) mainly affects children under five years of age.
我们处在脊髓灰质炎(脊灰)病毒传播的淡季。
“扶轮社的口号是‘立即终止脊灰’，”他说。
指尖上的螺纹和脊状纹路可以根据您触摸的物体来识别您。
The whorls and ridges on your fingertips can identify you based on what you touch.
2011年，全世界只有四个国家仍有脊灰流行。
In 2011, only four countries in the world remain polio-endemic.
2010年，全世界只有四个国家仍有脊灰流行。
In 2010, only four countries in the world remain polio-endemic.
其他的公司目前也着力于研究对血液和脊液成份的检测技术。
Other companies are working on tests for substances in blood and spinal fluid.
每年，由野生脊灰病毒引起的数十万病例得到预防。
Every year, hundreds of thousands of cases due to wild polio virus are prevented.
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.
上个月，我们得到确认，脊灰已从巴基斯坦传入中国。
Last month, we received confirmation that polio from Pakistan has spread into China.
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