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In this paper, predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
中文意思:
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。


以下为相关句子列表(点击查看,可以看对应的解释):
In this paper, on the basis of analyzing modeling method based on entity processing, a parameterized modeling method based on numerical computation is proposed, and developed by object-oriented programming. 本文通过基于实体处理成型方法的分析,提出了一种基于数值计算的参数化成型方法,并且采用面向对象的高级计算机语言编程实现。
In this paper, one major limiting factor regarding their industrial applications, the poor thermal stability of the open-form was described and the recent progress was reviewed. 其开环体的热稳定性尚达不到商品化要求是目前制约其工业化的一个主要障碍,本文综述了此方面的研究进展。
In this paper, one structured refining meshing scheme is presented for Earth, which can make all mesh sizes in the Earth more uniform, and refine the meshes near the surface area so as to meet the need of the geophysical analysis. 本文提出了一种地球结构化网格的生成和加密划分方案,可以对整个球体形成较为均匀的网格,并能够对近地表的区域完成网格加密以达到地球物理分析的需要。
In this paper, performance-based fire safety design concept was adopted to analyze fire safety objective of a underground bowling alley should achieve, fire scenarios were designed and the performance of water sprinkler and mechanical smoke evacuation sys 摘要采用性能化防火设计的思想,分析了某地下保龄球馆火灾热烟气安全需求,设计了可能发生的火灾场景,使用区域模拟技术研究了保龄球馆水喷淋和机械排烟系统的有效性。
In this paper, porphyrins and their metallic complexes as organic light-emitting diodes (OLED) are reviewed. 本文对卟啉及其金属配合物在有机电致发光材料方面的研究做了综述。
In this paper, predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control. 摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
In this paper, principle of EMS and carbon fiber property are introduced briefly, development and applications of carbon fiber in electromagnetic shielding composites are discussed expatiators. 摘要本文简要介绍了电磁屏蔽的原理和碳纤维的性能,分析、论述了碳纤维在聚合物基电磁屏蔽材料中应用研究的主要形式。
In this paper, progress of studies the fragrance of rice was summarized involving the mechanism of sniffed scent, chemical composition, appraising method, inheritance of aroma, effect of rice varieties and machining process and condition of storage, rice 摘要笔者综述了稻米的嗅香机理,香味的化学成分、鉴定方法与遗传,稻米的种类、加工过程、储藏条件对稻米香味的影响,以及育种研究方面的进展。
In this paper, recent progress in seismological, geochemical and petrological studies of the continent-tal lithosphere studies are reviewed. 摘要从地震学、地球化学、岩石学等不同学科的角度,对大陆岩石圈研究进展做了简要介绍。
In this paper, regarding the analysis of stability factors of Majiatian tailings fill dam, namely regional geologic structure, rock-soil body of dam foundation, poor geology phenomenon , leach consolidation and chemical consolidation of tailings, seepage 通过对马家田尾矿库区域地质构造、库区不良地质观察、尾矿淋滤固结和化学固结、坝体渗透水和库区特大洪水等因素对马家田尾矿堆积坝体稳定性影响的分析,初步论证了坝体尾矿砂土的地震液化、渗透破坏、坝肩滑坡使坝体失稳和洪水漫顶的可能性,以及尾矿淋滤固结和化学固结作用有助于坝体的稳定性。
In this paper, regarding the fly-field of the airfield was the researching objects. by system simulation method, a model for evaluating the aircraft taking-off and landing ability was introduced. 摘要以机场目标的飞行场地为主要研究对象,通过作战仿真的手段,建立了机场目标起降能力评估模型。
 
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