The changing trend of 5 models and the effect of 5 death causes on age - specific death rate model are also discussed and analysed.
讨论并分析了5种模型的变化趋势及5种死因对人群年龄死亡模型的影响作用。
The survival rate, specific death rate and nitrile hydratase activity of cells as the function of acrylamide concentration during the process were investigated.
研究了驯化过程中菌体存活率、比死亡速率和腈水合酶活性随丙烯酰胺浓度的变化。
According to the date obtained the mortality from various diseases of silicotics were calculated and compared with age specific death rate of local residents using SMR as index.
计算矽肺患者各类疾病死亡率，与当地居民的年龄别死亡率进行比较，计算标化死亡比；
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