查询词典 fluctuation

Design, the approximate calculation of the oil fluctuation in the ver

的状态空间描述，为分析简化和便于滤波器设计，进而探讨了通过俯

It is not affected by power voltage fluctuation arc length to ensure cutting capacity.

可轻松的实现两台并联使用，输出电流增大一倍，保证特厚材料的切割。

Correctional checking formula of melt flow ratio in injection molding was obtained by introducing a correction coefficient β which reflected the complexity degree of mold cavity. The results show that, the maximum flow ratio of 486 can be obtained when injection pressure ranges from 150 MPa to 160 MPa in Archimedes spiral mold for PP, while maximum flow ratio of 419 can be obtained when injection pressure ranges from 160 MPa to 170 MPa for PE. There is a local fluctuation phenomenon for flow ratio and corresponding injection rate in square spiral mold when injection pressure of 100, 120 and 150 MPa for PP and 130, 140 MPa for PE are reached respectively,and this phenomenon is more serious for good fluidity of melt. The average flow ratio in Archimedes spiral mold is 6% larger than that in square spiral mold for PP, and 4% for PE, the average flow ratio of PP is 19% bigger than PE in Archimedes spiral mold, and 15% in square spiral mold. The influence of the cavity profiles on the melt flow ratio is more significant for good fluidity of melt.

研究结果表明：在阿基米德螺旋线模具中，PP在注射压力为150~160 MPa时取得最大流动比485，PE在注射压力为160~170 MPa时取得最大流动比419；在方形螺旋线模具中，PP在注射压力为100，120和150 MPa，PE在注射压力为130和140 MPa时流动比及所对应的注射速率出现波动，且流动性好的熔体波动更为严重；PP在阿基米德螺旋线模具中的流动比均值较其在方形螺旋线模具中大6%，而PE大4%；在阿基米德螺旋线模具中流动比均值PP比PE的流动比均值大19%，而在方形螺旋线模具中PP的流动比均值比PE的大15%；流动性好的熔体受模具型腔轮廓特征影响大。

The environmental effects of temperature variation and buoyancy variability due to barometric pressure fluctuation can be arithmetically tared out of the weighing values.

温度变化以及由于大气压变化引起的浮力变化的这些环境影响可以在称重数据中去除掉。

The article predictes in farmer s increasing income fluctuation by the wavelet transform in 1976-2006.The Result shows that:Chinese armer income fluctutions appears the characteristic time scale 7 and 40 years keeping consistent with the periodic oscillation.

文章运用小波变换对1976—2006年间农民收入的波动关系进行预测分析，实证检验结果显示：全国农民人均纯收入增长具有7年和40年左右的特征时间尺度，与农民人均纯收入变化存在着7年和40年两个主要周期振荡保持一致。

We studied China and fluctuation in business cycle with statistical methods for the first time roundly and systematically, including coefficient correlation, linear regression, turning point coefficient, autocorrelation coefficient, grey system theory, VAR and time series analysis.

第一次全面系统运用统计学方法研究我国经济周期波动，包括相关系数法、一元和多元回归、转折点系数检验、自相关系数检验、灰色关联度、VAR向量自回归和确定性时间序列等方法，第一次把灰色关联分析方法应用于经济周期波动研究。

The Business Cycle Index can availably reflect the economic cycle fluctuation, and is widely used in the world.

景气指数是目前世界上使用较为普遍的一种反映经济周期波动的指标，随着我国与世界各国的经济交流日益加深，为了与国际接轨，我国也需要建立相应的景气指数。

Such an experimental measured values of a specific statistical average relative deviation from the phenomenon known as the fluctuation.

这种某一次具体实验测量值相对统计平均值偏离的现象，称为涨落。

Results indicate that the fluctuation of back electromotive force...

计算表明，受电枢反应和换向电感的影响，反电动势有较大波动，定位力矩的大小同磁化方向长度和极弧系数成正比关系。

This paper is studying fluctuation of price, backwardation and contango in future markets. Based on the theory of future market and spot market, it takes a further analysis of Robert and Nir's study of backwardation in oil future markets. By data acquisition and processing, descriptive statistics and time series analysis, it investigates the relationship between backwardation and the equilibrium of oil future prices and spot prices.

本文根据期货和现货的相关理论研究，以Robert和Nir对石油期货市场延期交割费的研究为基础，采用数据收集、对比统计分析和时间序列分析的方法，建立模型进行实证分析，对石油期货市场延期交割费的相关问题进行了研究。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。