查询词典 fluctuation

Results show that the Grey-Markov Model has higher accuracy than that of GM(1, 1) and the GM(1, 1) revised with the residual errors in predicting the variable sequence with strong fluctuation.

实例计算表明：灰色马尔可夫预报模型精度明显高于GM(1，1)模型及GM(1， 1)残差修正模型。

It was found that the residual pulsant Reynolds stress term of coherent structures has the same order of magnitude with the Reynolds stress contribution term of random fluctuation and can not be ignored in the dynamic model of coherent structures. This is not as that estimated before.

研究发现，相干结构剩余脉动雷诺应力项在数值上具有和随机脉动对相干结构贡献的雷诺应力相同的数量级，表明在相干结构动力学模型方程中，相干结构剩余脉动雷诺应力项并不像以前佑计的那样可以忽略不计。

The residual pulsant Reynolds stress term of coherent structures was compared quantitatively with the Reynolds stress contribution term of random fluctuation based on theoretical analysis.

基于理论上对湍流相干结构动量方程中随机脉动对相干结构贡献的雷诺应力和相干结构剩余脉动雷诺应力项的分析，对两种雷诺应力项进行了对比研究。

The phase-averaged waveforms of residual' pulsant Reynolds stress term of coherent structures and Reynolds stress contribution term of random fluctuation during coherent structures burst process were extracted by conditional sampling and phase- average technique.

用条件采样和相位平均技术提取了相干结构碎发过程中相干结构剩余脉动雷诺应力和随机脉动对相干结构贡献的雷诺应力的条件相位平均波形。

With the aid of Licor-6400 portable photosynthesis system, the physiological indexes and relate denvironmental factors were measured and influence of environmental factors on photosynthetic physiologic indexes and leaf water use efficiency of winter wheat was studied on dryland of Loess Plateau. The results howed that diurnal fluctuation of physiological rate of leaf was a not obvious two-hump curve and that oftranspiration rate was a typical resupinate "U".

采用Li-6400便携式光合测定系统在模拟光照条件下，通过对冬小麦叶片生理指标及其相应环境因子的测定，研究了小麦的生理指标和叶片水分利用效率的动态变化规律及其对环境因子的响应。

The positive research on price fluctuation in China takes the overall retail price index as the main indicator.

中国物价波动实证研究所用考察指标为商品零售价格指数。

Bermudagrass could be a promising species for revegetation of the water-level-fluctuation zone in the Three Gorges Reservoir Area.

从狗牙根对深淹胁迫的生理响应上，证明狗牙根是宜用于三峡水库消落带植被恢复的物种。

The riprap mound layer of sea reclamation consists of block stones with the looseness of structure,big pore and influenced by the fluctuation of ocean tidal,which results in the collapse of driven cast-in-place pile of impact pore-forming.

填海抛石棱体层由块石组成，结构松散，孔隙较大，且受海潮涨落影响，在该地区进行灌注桩的冲击成孔，很容易塌孔。

We stabilized the laser frequency on Rubidium absorption spectroscopy, and the residual frequency fluctuation is 3.5 MHz in 30 s.

我们还将激光器的频率锁定于Rb原子的吸收线上，30s内剩余频率起伏约为3.5 MHz。

They blamed this on the global financial crisis, the dramatic fluctuation of the ruble over the past couple of years and the closure of Cherkizovsky market.

他们将此归因于全球金融危机、卢布汇率过去几年的剧烈波动，以及切尔基佐沃市场的关闭。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。