The pressure safety devices can help to retain the draw bar pulling force in the event of a breakdown of the hydraulic system.

安全阀可以防止因液压系统故障等原因而引起的油缸输出推（拉）力急骤下降，可确保加工安全。

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Bar workers in Ireland are breathing easier since the smoking ban came in to force three years ago, according to new research.

依照最新研究，爱尔兰酒吧工人自从三年前禁烟令实施以来呼吸更自在了。

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But this calculation model in fact does not specify the force condition of the elastic bar, which leads to great deviation.

这种计算模型不能真实地反映弹条安装过程中的受力情况，导致计算结果偏差很大。

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Today it is the only force in Cuba, bar the state-party machine, with any significant structure or loyalty.

ECONOMIST: Fidel, the church and capitalism

When the legislation comes into force in 2016, pharmacists and hospitals will be required to scan the bar code to ensure the product is legitimate.

WSJ: Fakes Infiltrate Injectable Drugs

"Grossly disproportionate" force will still be against the law in England and Wales, but the bar will be higher than the current "proportionate" force test.

BBC: UK Politics