一名最近访问过皮尔布赖特实验室的实验室安全高级专家也对日益老化的设备能否有效维护生物安全提出担忧。

One senior laboratory safety expert who recently visited the Pirbright laboratories has also raised concerns about the ability of the ageing facilities to effectively maintain biosecurity.

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其中以粉煤灰50%、硅灰10%取代普通硅酸盐水泥的试验组，无论是试验室标准养护或是加速老化试验都表现出最优的耐久性。

Among which the experiment group using 50% fly ash, 10% silica fume instead of ordinary Portland cement shows rather better durability either in standard curing or the accelerated aging experiment.

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利弗摩尔实验室的物理学家将电子撞击人金属靶后所产生的高能X射线用于检测老化炸弹，以确认其是否还具有爆炸性。

Those electrons were smashed into a metal target to generate the high-energy X-rays that Livermore's physicists needed to peek inside ageing bombs and check that they were still in working order.

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