| 1. | The occurring stage of rice planthopper in the paddy with or without cultural crab was similar 养蟹田和非养蟹田稻飞虱的发生期基本一致。 |
| 2. | But the whole progress of the research is still behind the prediction of the occurrence time 但其总的研究进展仍远远落后于发生期的预测。 |
| 3. | Analysis and comparison of avhrr land surface temperature in the dust storm weather with tsp pm10 data 沙尘发生期遥感反演地表温度与实测沙尘数据之间的比较分析 |
| 4. | Avoiding eutrophication of water body is the radical way to prevent the outbreak of red tide 这与开放海区赤潮发生期溶解氧常处于过饱和状态的情况存在非常明显的差异。 |
| 5. | Record of art and culture , history of han dynasty makes a theoretical summary of the phenomenological periodization of chinese novels 摘要《汉书?艺文志》对中国小说发生期现象作出了理论总结。 |
| 6. | As far as the construction ofschoo1 system is concemed , it has been undertaken on the basis of practical 6xp1oration and theoretical discussion for the first time in the ' emergence period of eariy modernization of chinese education 关于学制建设,在中国教育早期现代化的发生期,经过实践的探索和思想的酝酿,已经初露端倪。 |
| 7. | The relationship between the degree of disease and circumstance factors was analysed , only to forecast the occurring time by the occurring pattern and accumulated temperature principle , and to forecast the degree of disease occurring by catching spores method and multianalysis method 分析了发病轻重与环境因子的关系,提出用发生型法及积温法预测赤星病发生期,用孢子捕捉法及多元相关法预测发生程度。 |
| 8. | Based on above analysis , using statistical method such as similar regression step by step , the quantitative model and qualitative model for date quantity and extent of ostrinia furnacalis forecasting were developed . by research the relationship among date , quantity and extent of ostrinia furnacalis and yield of maize , the estimated model of loss that yield of maize was effected by date , quantity and extent of ostrinia furnacalis was developed . the forecasting result was satisfactory after predicting 在分析玉米螟发生期、发生量、发生程度与气象条件关系的基础上,运用聚类分析、相似分析、逐步回归等统计分析方法建立玉米螟发生期、发生量、发生程度的定性、定量预报模式,又通过对玉米螟发生期、发生量、发生程度与玉米产量关系的研究,得出玉米产量受玉米螟发生期、发生量、发生程度影响的损失估计模型。 |
| 9. | It was found that under 18 34 the developmental duration decreased while the developmental rate increased linearly with temperature . the relationship between the developmental rate and temperature were further described with five regression equations , which could be applied to predict occurrence period and effective accumulative temperature 在试验温度范围内,花翅摇蚊各虫态发育历期随温度升高而逐渐缩短,发育速率与温度呈正比关系,并得出各虫态发育速率与温度的5个回归关系式,可用于花翅摇蚊发生期的有效积温预测。 |