查询词典 grey

Totally,four AMF species(Glomus mosseae,G.hoi,G.sp.1 and G.sp.2)were identifiedfrom 49 farmland soil samples.G.sp.1 and G.hoi mostly distributed in Grey Luvisol;G.mosseae mostly in Dark-Brown Chernozem;G.sp.2 mostly in Dark-Grey Chernozem.

从49个农田土壤样品中鉴定出何氏球囊霉、摩西球囊霉、Glomus sp.1和G.sp.24种VA菌根真菌。G.sp.1和何氏球囊霉主要分布于灰色淋溶土中；摩西球囊霉主要分布于暗棕钙土中；G.sp.2主要分布于灰漠钙土中。

Slope; limit equilibrium method; the finite element method; clinometer; displacement; water level; efficiency rainfall; grey system; grey association

工程科技II，工业通用技术及设备，工程基础科学滑坡；极限平衡法；有限元法；测斜；位移；水位；有效降雨量；灰色系统；灰色关联度

The paper makes use of the theory of Grey system forecast to resolve the ammunition and rocket system development cost evaluation, establishing the GM model of Grey systems and cumulative residual error model, then correcting the GM forecast model.

该文应用灰色系统预测理论解决弹箭系统研制费用估计问题，建立了灰色系统GM预测模型和n次累加残差模型并对GM预测模型进行修正。

Based on grey decision analysis theory the advantage and disadvantage of classical grey clustering decision are discussed.

罗党以灰色决策分析理论为基础，探讨了经典灰色聚类决策方法的优势和不足。

Based on the quotient of difference being the grey derivative's whitening values in the GM(1,1) direct modeling method, direct modeling method of GM(1,1) with a step by step optimum grey derivative's whiting values is put forward.

在 GM(1，1)直接建模法以差商作为灰导数白化值的基础上，提出了一种逐步优化灰导数白化值的方法。

Among used machine learning methods, the gradient descent method is widely used to train various classifiers, such as Back-propagation neural network and linear text classifier. However, the gradient descent method is easily trapped into a local minimum and slowly converges. Thus, this study presents a gradient forecasting search method based on prediction methods to enhance the performance of the gradient descent method in order to develop a more efficient and precise machine learning method for Web mining.However, a prediction method with few sample data items and precise forecasting ability is a key issue to the gradient forecasting search method. Applying statistic-based prediction methods to implement GFSM is unsuitable because they require a large number of data items to model a prediction model. In the contrast with statistic-based prediction methods, GM(1,1) grey prediction model does not need a large number of data items to build a prediction model, and it has low computational load. However, the original GM(1,1) grey prediction model uses a mathematical hypothesis and approximation to transform a continuous differential equation into a discrete difference equation in order to model a forecasting model.

其中梯度法是一个最常被使用来实现机器学习的方法之一，然而梯度法具有学习速度慢以及容易陷入局部最佳解的缺点，因此，本研究提出一个梯度预测搜寻法则(gradient forecasting search method， GFSM)来改善传统梯度法的缺点，用来提升一些以梯度学习法则为基础的分类器在资讯探勘上的效率与正确性；而一个所需资料量少、计算复杂度低且精确的预测模型是梯度预测搜寻法能否有效进行最佳解搜寻之关键因素，传统统计为基础之预测方法的缺点是需要较大量的数据进行预测，因此计算复杂度高，灰色预测模型具有建模资料少且计算复杂度低等优点，然而灰色预测理论以连续之微分方程式为基础，并且透过一些数学上的假设与近似，将连续之微分方程式转换成离散之差分方程式来对离散型资料进行建模及预测，这样的作法不尽合理，且缺乏数学理论上的完备性，因为在转换过程中已经造成建模上的误差，且建模过程仅考虑相邻的两个资料点关系，无法正确反应数列未来的变化趋势。

China's population;grey increment model of discreteness;grey increment model with new initial value;prediction of population

中国人口发展；离散灰色模型；新初值灰色增量模型；人口预测分析

The cold grey of his dressing-gown was almost the same as the cold grey of his eyes, and the pale buff of his waistcoat was the pale buff of his complexion.

他那晨衣的冷灰色几乎同他那眼睛的冷灰色是一样的，而他那背心的谈米黄色几乎同他那脸色是一样的。

This paper develops grey model, and offers modified grey model, and uses it to embankment settlement research.

本文在灰色模型的基础上进行改进，提出了修正灰色模型，并将其应用于路基沉降研究。

The introduction of the Field Grey Assault Gun uniform in 1940 led to field grey collar patches similar to the panzer type patches shown above. These were worn by self-propelled artillery crews.

引进外地灰色殴打枪制服在1940年导致领域的灰领补丁类似该型装甲补丁上面显示的，这些人所穿的自行火炮的船员。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。