Results: the morbidity level increased with dust dose increased and we obtained an equation of regression between them.
结果：发病水平随接尘剂量的增高而增高，求得了两者之间的回归方程。
The gained predicting equation of regression could predict the effects on rice seed vigour at different Pb concentrations.
得到的回归预测方程能有效预测不同铅浓度对水稻种子活力的影响。
In practical work, new sample data is often obtained continually, so these new data can be joined the empirical equation of regression by using recursive formula, and form a dynamic forecast system.
在实际工作中，往往会不断得到新样品数据，可利用递推公式不断地把新信息加入到经验回归方程中去，以构成一个动态的预测系统。
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