By comparing the isolation period with the critical and maximum periods, the limit ratio can be obtained by using the corresponding formulas.

将隔震结构的周期与临界周期和最大隔震周期比较，就可以得到相应高宽比限值的表达式。

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It is also found that there exists a maximum isolation period, at which, the limit ratio is zero or the horizontal displacement of the rubber bearing exceeds the allowable value.

研究还发现，存在一个最大的隔震结构周期使高宽比限值等于零或隔震层位移超过容许值。

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The results obtained in the paper have shown that the liquefied soil layers may have isolation effects on the brick-stone buildings with short period.

计算结果表明，砖石房屋等短周期建筑物往往受到隔震作用；

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And there is a mild incentive for virtue: the joyous welcome afforded to countries that gain readmission after a period of isolation (as happened to South Africa after apartheid or Pakistan when democracy returned).

ECONOMIST: The Commonwealth

Prolonged period of complete isolation: the expedition will be alone, isolated and have to be self-sufficient for at least 7-9 months.

BBC: Viewpoint: The last great polar challenge