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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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

At the Conservative Party conference, Justice Secretary Chris Grayling said "grossly disproportionate" force would still be against the law in England and Wales, but the bar would be higher than the current "proportionate" force test.

BBC: Tony Martin welcomes increased power to protect home