查询词典 grey

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

I have brown hair – now totally grey, keeping it brown at a great expense .

我的头发是棕色的——不过现在已经变灰了，要让它恢复棕色那可要花点大代价的。

The mathematical methods which are usually used to predict the athletic sports are the model of regression and grey model.

在体育理论的研究中，往往是利用回归模型或灰色模型对运动成绩进行预测。

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。

Methods Using Grey model （ 1 : 1 ）, autoregression model, ARIMA model to fit the data of the incidence rate in our country from 1984 to 2006, and predict the incidence rate of malaria in later years.

探讨不同模型在疟疾发病预测中的应用，并预测疟疾在中国未来的发病趋势。

Even the world is grey , I hope you can bring me the azure color which end my blues.

即时世界是灰色的，我希望你是我心底的一块蔚蓝，帮我结束这布鲁斯的节奏。

The purplish, bandy-legged, grey dog was running merrily along at the side of the road; sometimes picking up a hind leg, and skipping along on three paws as a sign of content and briskness, or barking at the crows that perched on the carrion.

有时，为了证明它的敏捷和满足，它提起一只后腿，用三条腿跳，然后又用四条腿跑，狂吠着向栖在死尸上的乌鸦奔去。

It has a grey bark, reaches a height of 35 meters and a diameter of 3 to 4 meters.

它有一个灰色的树皮，达到高度35米，直径为3至4米。

Green weed and grey barnacles encrust every part under the sea.

水下的部分则覆满了绿色的海藻和灰色的藤壶。

This grey then forms the base colour for the map.

之后用调整好的灰度作为贴图的基准色值。

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％。