It shows that unelastic volumetric strain is directly prepositional to the number of micro-cracks.

结果表明，非弹性体积应变与微裂纹数量直接相关。

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Secondly, a dwindling band of workers will have to support rising social-security payments, as the number of retired people grows.This will strain public finances.

其次，随着退休人群的增长，随之增加的社会保障支出将落在越来越少的工作人群肩上，这将给公共财政造成很大压力。

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The building was so big that the heating bill alone ate up a lot of the budget, and the growing number of elderly patients put it under increasing strain.

堂皇的医院大楼耗能惊人，仅仅是供暖的账单都已经用掉大部分预算资金，再加上不断增加的老年病患入院就医，更是火上浇油。

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Mexico has the highest number of deaths and infections of the flu, which is caused by a new strain of the influenza A H1N1 virus.

VOA: standard.2009.05.08

The new cases of the H7N9 strain bring the total number of reported cases to 60.

BBC: China bird flu: Reported H7N9 cases rise to 60

To relieve the strain on our forces, my budget increases the number of our soldiers and Marines.

NPR: Obama's Address To Congress

Experts fear that as the number of humans infected with the H5N1 strain increases, the opportunity for the virus to mutate also grows.

ECONOMIST: Turkey takes fright as bird flu heads towards Europe | The