Mums look for cosy niches - jobs they can manage without too much strain on the family, for which they still take the bulk of responsibility.

妈妈们找寻舒适的壁龛——一些无需让家庭负担太多压力便可以管理的工作，虽然她们仍然要对其承担大部分的责任。

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In general, thin films have higher energy densities, larger strain capabilities, and more rapid response times than their bulk counterparts.

通常薄膜材料具有比其块材更高的能量密度、更大的应变能力以及更快的响应时间。

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However, the strain rates in thin films are smaller than those of bulk materials, making the strain more difficult under the same stress.

薄膜比块体材料的应变速率低，在同样的应力下应变更加困难。

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However, the strain rates in thin films are smaller than those of bulk materials, making the strain more difficult under the same stress.

薄膜比块体材料的应变速率低，在同样的应力下应变更加困难。

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