查询词典 strain theory

With the help of tensor analysis theory, the velocity field and the strain rate field during the tri-walled tube forming process are deduced, and the energy rate and the needed driving force are determined.

运用数学物理方法，遵循能量守恒定律对卷焊管电阻直热式钎焊过程进行了稳态分析，求得了焊接区上的温度分布及钎焊各工艺参数间的关系，并进一步探讨了钎焊温度波动控制策略及方法。

This paper expands on the strain unit of windlass in theory from the perspect of the whole system .

本文从系统整体出发，对绞车式拉进装置作了详细的论述。

This paper expands on the strain unit of windlass in theory fromthe perspect of the whole system .

本文从系统整体出发，对绞车式拉进装置作了详细的论述。

In this project, we have deduced the joint inversion model of geodetic data, seismic data and geological data considering about their weight ratio; presented Bayes-iterative search inversion algorithm which improved on the traditional Bayes algorithm and strengthen the stability of inversion solutions; enriched and developed geodetic joint inversion theory and method of tectonic stress field; joint with geodetic, seismic, geological and geophysical data, we have inverted the temporal and spatial variation characteristics of crustal deformation of active tectonic blocks in North China and the present-day cruatal movement and strain-stress field by FEM, DDA and bi-cubic spline function fit method; especial for the crustal deformation result in some typical areas, we have presented geodynamical interpretation and done some seismic dangerous estimations.

大地测量联合反演构造应力场属于大地测量与地球动力学和地震学的交叉研究领域，主要内容是研究用大地测量地壳运动监测数据定量研究地壳运动和变形的动力学问题及分析预测地震，本项目推导了兼顾权比确定的大地测量、地震和地质三类数据的联合反演模型；提出贝叶斯-轮回搜索反演算法，改进传统的贝叶斯方法，改善反演解的稳定性；丰富、发展了大地测量反演构造应力场理论及方法；联合大地测量、地震、地质、地球物理数据采用有限单元法、块体不连续变形分析法和双三次样条函数拟合方法反演分析了华北地区活动地块运动时空变化特征以及中国大陆现今地壳运动与应变-应力场，对典型地区地表形变结果进行地球动力学解释并进行地震危险性估计。

The hole diameter differences of various and sections in Wang 80?3 well in Jianghan Oil Field have been measured.With the help of finite element method and model recognization theory,association of time and gypseous salt creep deformation,the strain distribution of casings_heterogeneous and homogeneous loads,the effects of manufacturing defects on casing stress and the cement...

借助模型辨识理论及运用有限元方法，研究了盐膏层蠕变与时间的关系、套管在均匀及非均匀载荷作用下的应力分布、套管制造缺陷对套管应力的影响以及水泥环对套管的保护作用等，所得结果为工程实际应用提供了定量的参考依据，具有很好的推广应用价值。

The relationship of stress and strain was obtained on the basis of the nonlocal elastic theory.

基于非局部弹性理论，建立了碳纳米管壳体模型的应力应变关系。

Some important conclusions were obtained, and a new theory of multiaxial damage fatigue and the life prediction models were presented. First, based on the multiaxial fatigue experimental researches, the characteristic of cyclic stress-strain relation was studied deeply under multiaxial proportional and nonproportional loading.

本文在综述目前国内外多轴疲劳研究成果的优点与不足的基础上，从工程应用角度出发，在试验和理论两个方面深入研究了多轴疲劳损伤与寿命预测问题，得到了一些重要试验结果，在此基础上提出了新的多轴疲劳损伤理论及寿命预测模型。

In this paper, 1554 strains of bacteria were isolated from the soybean rhizophere in the different continuous systems. Those biocontrol bacteria were screened in vitro and in vivo. 6 strains of them had the better control efficacy. They exhibited the different antagonism to the pathogens of soybean root in vitro. The strains 18BR2-2 and 18BR9-1 showed a wide range of antagonism against Fusarium oxysporum, F. avenaoeum, F. solani and Rhizoctonia solani in vitro. The 6 strains exhibited different control efficacy to soybean root rot in greenhouse and in field. In greenhouse, they could decrease the degree of soybean disease significantly, and the control efficacy of 18BR2-2 was the best and can reach 45.90%. In theory, soybean treated by 18BR2-2 may postpone the days of outbreaking of disease for 6 days. The strain 18BR2-2 also promoted the growth of soybean seedling and, raising the soybean height for 11.24%, increasing dry weight for 40.91% and fresh weight for 35.27%.

本研究从长期连作田种植的大豆及其根际土壤中分离细菌1554株，采用平板测试、温室盆栽及田间试验等方法，筛选了对大豆根腐病菌(主要是尖孢镰孢菌Fusarium oxysporum)有很好作用效果的生防细菌6株，在离体的条件下均表现出不同程度的拮抗作用，其中生防细菌18BR2-2和18BR9-1表现出很广的杀菌谱，对大豆根腐病菌尖孢镰孢菌(F.oxysporum)、燕麦镰孢菌(F.avenaoeum)、茄腐镰孢菌和立枯丝核菌都有很好的离体拮抗作用，并且这6株生防细菌在盆栽和田间的情况下均表现出对大豆根腐病一定的防治效果。

The "unsampled pig herd" theory was suggested by Smith and his colleagues, who concluded that "the progenitor of the S-OIV epidemic originated in pigs", and the "long unsampled history observed for every segment" of the S-OIV genome "suggests that the reassortment of Eurasian and North American swine lineages may not have occurred recently, and it is possible that this single reassortant lineage has been cryptically circulating rather than two distinct lineages of swine flu", and that "Movement of live pigs between Eurasia and North America seems to have facilitated the mixing of diverse swine influenzas, leading to the multiple reassortment events associated with the genesis of the S-OIV strain."

&无取样猪群&论，由Smith和他的同事提出，断定&流行猪源流感病毒的祖辈起源于猪&，猪源流感病毒基因上&观察到的每一个基因片断长期无样本历史&表明，&欧亚族和北美族猪流感病毒重配可能没有在最近发生，也许这种重配病毒已经神秘传播，而不是两个不同族猪流感病毒&，而且&在欧亚大陆与北美之间的生猪运输似乎促进了不同的猪流感病毒混合，导致了和猪源流感病毒毒株基因关联的多重配事件。&

The "unsampled pig herd" theory was suggested by Smith and his colleagues who concluded that "the progenitor of the S-OIV epidemic originated in pigs" and the "long unsampled history observed for every segment" of the S-OIV genome "suggests that the reassortment of Eurasian and North American swine lineages may not have occurred recently and it is possible that this single reassortant lineage has been cryptically circulating rather than two distinct lineages of swine flu" and that "Movement of live pigs between Eurasia and North America seems to have facilitated the mixing of diverse swine influenzas leading to the multiple reassortment events associated with the genesis of the S-OIV strain."

&无取样猪群&论，由Smith和他的同事提出，断定&流行猪源流感病毒的祖辈起源于猪&，猪源流感病毒基因上&观察到的每一个基因片断长期无样本历史&表明，&欧亚族和北美族猪流感病毒重配可能没有在最近发生，也许这种重配病毒已经神秘传播，而不是两个不同族猪流感病毒&，而且&在欧亚大陆与北美之间的生猪运输好像促进了不同的猪流感病毒混合，导致了和猪源流感病毒毒株基因关联的多重配事件。&

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。