In this paper,the long term evolutionary trend of solar cycles is investigated on the basis of a statistical analysis of the north south asymmetry of the large sunspot groups in solar cycles Nos.
通过对１２－２２周（（１８７８－１９９５年）太阳大黑子群分布南北半球不对称的整体特征的研究，探讨了太阳活动周的长期演化趋势。
Experimental research on long term stress relaxation of cellular silicone material;
硅泡沫材料的长期应力松弛实验研究
With the benefit to go function being its recursive stage objective,the stochastic dynamic programming model for long term generation optimization is established for Three Gorge cascade.
通过余留效益函数对三峡梯级建立了长期发电优化调度的随机动态规划模型。
By use of the economic growth model, this paper analyzes the long term relationship between the finance and the economic growth.
利用经济增长模型从动态的角度对金融与经济增长的关系进行了长期分析。
Clinical characteristics of 1482 patients with long-term hemodialysis treatment;
1482例长期血液透析患者的临床分析
Effects of short-term and long-term salt stresses on growth of new selections of warm season turfgrasses;
短期和长期盐胁迫对暖季型草坪草新选系生长的影响
The Effects of Long-term Different Fertilization on the Biodiversit y of Weeds in Maize Field;
长期不同施肥对玉米田间杂草生物多样性的影响
In this paper, with mathematical analysis writers proved the relation of short-run and long-run cost curves in economics.
用数学分析方法论证了经济学中短期成本曲线与长期成本曲线的关系，纠正了某些书中对此不严密甚至是错误的结论。
In this paper the auther demonstrates envelop feathures between long-run and short-run cost function under the conditions of the production function with capital and labor.
在资本和劳动两种生产要素的生产函数条件下,运用数理经济研究方法对短期成本函数与长期成本函数间存在的包络关系进行了严格的数学证明,这对于企业的生产决策具有实际意义。