The conception of crustal isostasy produces a great effect to the geo-scientific research; especially take an important role in the studies of Geodesy and Geodynamics.

地壳均衡的概念对地学的研究有着极大的影响，特别是在大地测量学和地球动力学中发挥了重要作用。

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But there are differing opinions here about how much that means China should take on a more responsible role as a great power globally.

BBC: Obama to China: 'Act like a grown-up'

Now, he says, the economic challenges the country faces are so great that Barack Obama should take a lead role in getting a new stimulus package through the lame duck Congress.

NPR: To Face Economic Crisis, Obama Moves Quickly

"I would take a great deal of persuading to accept the fact that there's a role for the disabled in the front-line of the armed services, " he said.

BBC: General rejects disability plan