查询词典 four dimensional

Based on the previous in-depth analysis of the four dimensional factors regarding the competitiveness of venture firms, the author has chosen some success and failure cases of venture firms and venture investment companies to conduct further research.

在对风险企业竞争力四个关键维度要素进行深入分析的基础上，本章选择若干风险企业和风险投资公司成功、失败的案例进行分析。

Among the numerous research efforts on this topic, the four - dimensional culture model of a national culture and the relative analysis among countries, established by Hofstede (1980) are most widely accepted.

但是由于数据的不可比性，不能客观地反映中国和加拿大两国的文化差异。此外，中国经济环境的变化必然带来文化的不断发展和变化。因此，在新的经济环境下研究中西方文化差异具有现实意义。

By taking the strategy of uniting geometry with algebra and using the method of minimal value, the distance problems between a line and a line in four dimensional space are investigated and the caculation formula are given.

用形数结合的观点和极小值法，研究了四维空间中两直线间的距离问题，并给出了相应的计算公式。

In this study, Atmospheric Research Model (MM5) and Four-dimensional data assimilation was used to simulate the land and sea breeze circulation over the Pearl River Delta Region.

利用中尺度数值模式MM5和四维同化技术相结合对珠三角地区的海陆风过程进行了模拟。

The results of numerical experiments, using the four-dimensional variational data assimilation system of the nonhydrostatic mesoscale model MM5, show that: the tangent linear model and adjoint model conducted by keeping the "on-off" switches the same as the basic state, can provide a good approximation of the first-order information to the NLM perturbation and a good descent direction for the minimization procedure; switching on and off at every other time step in the Kuo cumulus parameterization scheme don"t impact the convergence rate of cost function; the existence of the switches don"t impact improvement to the MM5 model rainfall prediction because that not only specific humidity ,but also wind, temperature and pressure are assimilated into the model.

非静力中尺度数值模式MM5的四维变分资料同化系统进行的数值试验结果表明："开关"变量保持与基态一致，所构造的切向线性模式能够提供关于非线性模式扰动的一阶近似，伴随模式所计算的梯度值能够为最小化过程提供较好的下降方向；郭氏降水参数化方案中对流每隔一个积分步的交替发生并不影响目标函数最小化的收敛速度；"开关"变量的存在也不影响将风、温度、气压和比湿结合起来同化对MM5降水预报准确性的提高。

The authors have for the first time come up with the conception of a unitsection separate node point heat resistance and heat capacity four dimensional heat network for a solar energy collector system and on this basis set up a heat collection process dynamic emulation model for the solar energy collector system with a cavity absorber trough paraboloidal mirror.

在首次提出太阳能集热器系统单元段分节点热阻、热容网络——四维热网络概念基础上，建立腔体式吸收器——槽形抛物镜太阳能集热器系统的集热过程动态仿真模型。

Adopting the method of discontinuity bypass mapping,the Poincare mapping of Jeffcott model near a grazing orbit was estimated as a four-dimensional mapping with square-root compressing or stretching at one direction,from which many chaos motions were found by researching the mapping.

采用不连续穿越映射技术，Jeffcott碰摩转子系统的映射在擦边碰撞附近可以近似为在一个方向上有平方根伸缩的四维映射，本文对此映射的动力学行为进行了研究，而且发现了有大量的混沌现象存在。

Then four-dimensional matrix DCT(4D-MDCT) is performed to get rid of the correlation between pixels in the submatrix.

然后对四维子矩阵运用四维矩阵DCT(4D-MDCT)来去除四维子矩阵中各元素间的相关性。

After the coefficients are quantized by a four-dimensional quantization matrix, most of them equal 0, and thus many zero planes appear in the submatrix.

用四维量化矩阵对变换后的四维子矩阵系数进行量化，量化后四维子矩阵中的变换系数大部分变成了零，这样就会在子矩阵中出现大量的零平面。

I was trying to visualize how to construct a tesseract around a four-dimensional sphere when I drifted away to sleep.

当我渐渐睡着时，我还在想象在一个四维球体周围怎样构造一个超正方体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。