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Based on the theory of gradient transport,we analysed the different turbulence dispersal situation of pollen and seeds and bring about the turbulence dispersal model of pollen and seeds.Finally,We used this model studied the seeds dispersal pattern of Gor
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运用梯度──输送理论分析了植物花粉、种子湍流扩散的不同情况,导出了植物花粉、种子散布的湍流扩散模型,并运用此模型研究了亚热带常绿阔叶林优势种四川大头茶的种子散布格局. |
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Based on the theory of hydraulic cylinder design and physical properties of MRF, a mechanical model of MRF dampers with mixed mode of pressure-gradient flow and shear flow in a single cylinder was developed, the parameters of MRF dampers were simulatively
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摘要基于液压流体力学的液压缸设计理论,由磁流变液的物理性质建立了单筒压差流动和剪切流动混合模式磁流变液阻尼器的力学模型,用数值计算方法对磁流变液阻尼器的参数进行了模拟仿真研究,求得缸体和活塞之间的缝隙、活塞的运动速度及磁流变液的粘性系数与阻尼力之间的关系,确定了最佳的磁流变液阻尼器设计参数。 |
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Based on the theory of hydrology and ecology, the concept of river ecosystem health was defined and the influence factors were analyzed.
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摘要基于水文学和生态学原理,对河流生态系统健康的概念进行了界定。 |
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Based on the theory of island biogeography, it is seemed that Liuheyuan which is connected with the reserve has the geography superiority in enlarging David's deer habitat.
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相较其它湿地,依据岛屿生物地理学“平衡理论”,与麋鹿保护区相连通的六合垸似乎在扩大麋鹿栖息地方面具有地理优势。 |
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Based on the theory of labour value, the surplus theory is the demonstration of the surplus labour of workers.
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摘要剩馀价值理论是以劳动价值论为基础,是劳动者剩馀劳动的体现。 |
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Based on the theory of particle flow, Particle Flow Code (PFC) model of sand and clay were constituted respectively by adopting the different particle contact constitutive relationships.
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摘要本文基于颗粒流理论,引入不同的颗粒接触连接本构模型,分别建立了砂土和粘性土的颗粒流模型。 |
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Based on the theory of reliability design, combined with the conventional design code and the way of roller chain drive, the author discusses the reliability design of roller chain drive and provides some design examples.
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摘要根据可靠性设计理论,结合套筒滚子链传动的传统设计准则和方法,研讨了套筒滚子链传动的可靠性设计方法,并列举了设计实例。 |
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Based on the theory of self-access learning, this paper focuses on how to cultivate, develop and strengthen students' ability of self-access English learning by the case study of the web course online English writing course, which helps them acquire the s
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摘要本文在自主学习理论的基础上,以网络课程在线英语写作课为实例,重点介绍了如何利用网络环境开发、培养和锻炼学生自主英语学习能力,帮助他们获得终身学习的技巧。 |
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Based on the theory of subject identification of Lacan, a well-known French structuralist and poststructuralist thinker, this article discusses and analyzes the role language plays in the process of the protagnist's growth, aiming to illuminate that proce
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本文借助法国著名结构主义及后结构主义思想家拉康的主体认证理论,对小说主人公成长过程中语言在其主体认证中所起的作用进行探讨分析,再现其成长历程。 |
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Based on the theory of synthesis in inverse emulsion, five factors to influence the viscosity of product and the stability of the system were studied, such as the ratio of volume of oil to water, the type of emulsifiers, the type of initiators and the rat
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讨论了引发剂种类、乳化剂种类、单体浓度及配比、油水体积比等因素对共聚产物的特性黏度和体系稳定性能的影响,确定了最佳反应条件。 |
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Based on the theory of tacit knowledge, Polanyi has convincingly explained the western paintings of the Concretists, and believed that western painting is a grand new image resulting from integrating the focal awareness of natural images with the subsidia
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根据这一理论,博兰尼对西方具象派绘画做出了令人信服的解释,认爲西方绘画是由对自然图像的集中意识和对人工痕迹的辅助意识综合而成的崭新图像。 |