甲醛释放量与老化周期成指数关系。
The formaldehyde emission and the decay period is exponent relationship.
生物学家Leonard Hayflick和PaulMoorhead于1961年发现这个细胞老化减缓的现象，他们认为这是正常细胞生长周期中的一个普通环节。
This slowdown, first identified in 1961 by biologists Leonard Hayflick and Paul Moorhead, is a normal part of cellular life cycles.
根据本标准，所有老化试验的参照品必须包括采用的试验循环周期的完整说明。
All references to exposures in accordance with this practice must include a complete description of the test cycle used.
在即将来临的知识经济时代，技术老化的周期及人们职业变换的进度将越来越快。
With the coming of knowledge economy the ageing period of technology and the speed of the people's occupational change become more quickly than before.
但由于国家课程的编制周期和修订周期间隔较长，教材老化和知识陈旧成了教育的通病和顽疾。
However, the National Curriculum development cycle and revised cycle interval longer, materials and ageing old knowledge as a result of the education and chronic diseases.
我认为，从生物学的角度来看，人生读起来就像一首诗，有它自己的韵律和节奏，有其内在的从成长到老化的周期。
I think that, from a biological standpoint, human life almost reads like a poem. It has its own rhythm and beat, its internal cycles of growth and decay.
我认为，从生物学的角度来看，人生读起来就像一首诗，有它自己的韵律和节奏，有其内在的从成长到老化的周期。
I think that, from a biological standpoint, human life almost reads like a poem. It has its own rhythm and beat, its internal cycles of growth and decay.
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