A technical and economical comparison was carried out for selection of turbine start-up mode and arrangement of its bypass system of 1 000 MW extra supercritical units in Zouxian Power Plant.
为选择邹县电厂1 000 MW超超临界机组汽轮机的启动方式和旁路系统的配置方式，进行了技术分析和经济比较。
The Experiments were carried out to study the relationship dynamics of Aphis craccivora population and Vicia faba between physiological stress on the basis of plant-insect experimental system.
本文以蚕豆和蚕豆蚜构成的人工种间关系系统为对象，研究了蚜虫种群动态和植物生理变化的关系。
Discusses the existing problems of slime dense medium system in Xiqu coal mine preparation plant, points out the solved methods, provides experience for preparation plant improving.
探讨了西曲矿选煤厂煤泥重介系统存在的问题，提出了具体的解决办法，为选煤厂改造提供经验。
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