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基本解释

A new model of the stucture of the earth has been put forward. The earth is a relatively open system, and there is a close link among its layers and spheres.
笔者认为，地球是一个相对开放的系统，其内外层圈之间的作用过程存在密切联系，地球层圈的分化融合作用决定了地球的演化及变动过程。
With confined 'direct' on site installation, fixed and arranged visual effect will induce the connection between time and space, representing the close link in improvising theater.
在禁锢“直观”现场装置的前提下，用固有设定的视觉营造出时间和空间的联系感，为现场即兴戏剧的呈现出充分的紧密结合。
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And the province's two major distributors to establish a network of more than a very close link in the industry and have extensive business relationship.
与省内主要的二十多家网络经销商建立了十分密切的联系，并在行业中拥有广泛的业务关系。

Only in the 13th edition in 1989 did Messrs Samuelson and Nordhaus bemoan the low level of American savings and suggest a close link between saving and economic growth.
ECONOMIST: What is the role of a basic economics textbook?
As great forces of history converge to human scale, this modern-day boom town feels like the Wild West but without the confident self-reliance: the articulate residents are painfully aware of the close link between their sustenance and their misery, and international bureaucrats reveal a terrible disconnection from the reality on the ground as they encourage the unchecked development.
NEWYORKER: Darwin's Nightmare