1.
Study on the Economic Threshold and Ecological Threshold of Oedaleus Asiaticus Control on Typical Steppe in Inner Mongolia;
内蒙古典型草原亚洲小车蝗防治经济阈值和生态阈值研究
2.
Studies on the Ecologycal Charctereristics Economic Threshold and Control Strategy of Heliothis armigera in Tomato Fields--Ⅰ.Spatial Patterns of Eggs ahd Larvae
番茄田棉铃虫生态特性、经济阈值及防治决策的研究 Ⅰ、卵和幼虫的空间分布型
3.
Optimal Prevention Threshold & Time of Random Fluctuating Insect Pests Group;
随机波动害虫种群的最优防治阈值与防治时刻
4.
A STUDY ON THE ECO-ECONOMIC THRESHOLD AND ECO-ECONOMIC CONTROL THRESHOLD MODEL OF GREEN BRISTLEGRASS (SETARIA VIRIDIS) IN PRAIRIE MILKVETCH (ASTRAGALUS ADSURGENS) FIDLD
沙打旺田狗尾草生态经济阈值生态经济除草阈值模型的研究
5.
Study on the losses of wheat yield and the ELT to wheat root rot
小麦根腐病产量损失及经济阈值研究
6.
Economic threshold and critical period of competition of Flaveria bidentis (L.) Kuntze in the cotton fields
棉田黄顶菊的经济阈值及竞争临界期
7.
Plant Disease Control with Economic Threshold
具有经济阈值的植物疾病模型(英文)
8.
Simulation model of multivariate dynamic economic threshold of Asian corn borer.
亚洲玉米螟多元动态经济阈值模拟模型
9.
The Threshold Effect of China s Urban-Rural Income Inequality on Real Economic Growth;
中国城乡收入差距对实际经济增长的阈值效应
10.
On the Scale and Boundary of Industrial Cluster Based on Circular Economy;
基于循环经济视角的产业集群规模和阈值研究
11.
Preliminary Study on Economic Threshold of Rhodococcus turanicus Arch,in Apricot Orchard in Kashi Region
喀什地区杏树吐伦球坚蚧经济阈值的初步研究
12.
Influence of Avena fatua on growth of oilseed rape and its economic threshold
野燕麦对油菜生长的影响及其经济阈值
13.
autonomous network of threshold elements
自治的阈值元件网络
14.
The threshold effect of the urban-rural income disparity on real economic growth in China;
我国城乡收入差距对实际经济增长的阈值效应(英文)
15.
A Nonlinear Threshold Cointegration Analysis on China s Phillips Curve in Business Cycle;
我国经济周期中菲利普斯曲线机制转移的阈值协整研究
16.
Optimal thresholds of urban economic development and urbanization under scarce water resources in arid northwest China;
水资源约束下西北干旱区城市经济发展与城市化阈值
17.
Financial safety and crisis prevention in legalization angle
法治化视阈中的金融安全和危机预防
18.
Institutional Analysis of Inefficient Cost for SARS Prevention;
SARS防治无效成本的制度经济学反思