我们已经看到，海洋占地球面积的百分之七十之多。
As we have seen, oceans cover more than 70 percent of the earth.
海洋覆盖了整个地球面积的三分之二，但是海水是（咸的）…也就是说，…
More information about water The oceans cover two thirds of Earth , but…
方法：用图像分析系统测量多柔比星肾病大鼠肾小球面积、系膜区面积和系膜细胞数。
Methods: the glomerular areas, mesangial areas and the number of mesangial cells of Doxorubicin nephropathy in rats were measured by quantitative morphometry study.
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