It also keeps the Navy on pace for a 60-month construction span by the end of the Block II contract.

它也使海军保持了Block II合同60个月的建设跨度。

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Each span is 50 metres long, which was constructed with span by span method from south to north.

每跨50米，纵横向预应力体系；采用移动模架法自南向北逐跨施工。

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It is very difficult to get the result about modified RBC life span by RBC transfusion among great heterogeneous mammal animals.

大哺乳动物异种rbc输注很难观察到修饰rbc的存活率和寿命长短。

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" Adds Donald Ingram, who studies for the National Institute on Aging whether ultralow-calorie diets slow aging in monkeys:"I think increasing maximum life span by 25 to 30 years is possible.

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Vitamin C and Vitamin E, were demonstrated in the overwhelming majority of papers to be able to increase mean life span by up to 30% or more and Coenzyme Q-10 doubled mean life expectancy in one paper, as mentioned above This writer has been taking megadoses of antioxidants ever since he has been 14 years old and today looks over 20 years younger than his 68 years.

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The princess opened the 152-metre three-span structure by unveiling a plaque in honour of PC Barker.

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