In a new paper in the journal Geophysical Research Letters, Robock and his colleagues say it could be done for "several billion" dollars a year.
在一篇刊登在《地球物理研究快报》(Geophysical ResearchLetters)杂志上的新论文中，罗博克和他的同事称每年投“几十亿”美元就能干成这件事。
The first polar base was established in 1957, during the International Geophysical Year.
首座南极科考基地建于1957年，当时正值国际地球物理学年。
This group is an outgrowth of the International Geophysical Year (I.G.Y.); but its program has broadened from geophysics to include mapping and biology.
这个组织是国际地球物理学年会(LGY)的一个派生机构，但是它的项目已经从地球物理学拓展到地图测绘和生物学。
Since the International Geophysical Year commencing from 1957, great advancements have been attained in this branch of science, both theoretically and experimentally.
自从1957年第一次地球物理年以来，这门科学获得很大的进展。
Since the International Geophysical Year commencing from 1957, great advancements have been attained in this branch of science, both theoretically and experimentally.
自从1957年第一次地球物理年以来，这门科学获得很大的进展。
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