查询词典 sampling methods

The pipe wall with four 2.5 mm diameter sampling holes and a spin generating element mounted upstream for modifying the inlet flow pattern are set up to improve the representative of the sampled fluid.

管壁四周均匀布置4个直径为2.5 mm的取样孔，并在上游采用旋流叶片将来流整改成液膜厚度均匀分布的环状流型，从而增强了取样的代表性。

The discrete mathematical models of the roundness and cylindricity EST are established; the mathematical models of the generating line straightness, axis straightness, coaxality, circular run—out and total run—out error of the revolution workpiece are put forward and established first based on the EST; the method about how to sample and to process sampling data are given when these models are applied to measure workpleces.

其主要内容是：针对长期以来国内对回转误差运动的有关定义的争论，对回转误差运动的本质进行了讨论，进一步明确了静心与静轴，动心与动轴的概念，并对此进行了数学推导，给出了相应的数学模型；统一了"平动说"和"瞬心说"关于回转轴线的定义，指出了两种学说各自的力学基础和它们的一致性。

4Based on a fact that the price formula of Asian options can be transformed into that of vanilla European option when the time to maturity is less than or equal to the length of average, we skillfully obtain the analytical price formula for the option on the minimum or the maximum of two geometric average prices and generalize it to obtain the price formula of several average prices for the first time. We also apply the method of [121], which approximates the arithmetic average by the geometric average, to the pricing of opitons on the minimum or the maximum of two arithmetic average prices to obtain Its approximated price formula. Numerical results show that the approximated price is relatively accurate when the riskless interest rate is large or the option is in the money and the volatility of two underlying assets are high and its accuracy is a little reduced but still good when the dividends are considered. However, it is hardly affected by the sampling number.

我们基于观察到的一个事实即当离到期时间小于或等于平均期间时亚洲期权的价格可变换成普通的欧式期权的价格，从而巧妙地得到了两个几何平均价格的最小或最大值期权价格的解析公式，通过简单地推广，首次得到了多个几何平均时的价格公式；将[121]用于算术平均亚洲期权的定价方法推广到两个算术平均价格的最小或最大值期权，从而得到它的渐进公式，数值结果表明：渐进价格的准确性在无风险利率较大或期权为实值且两标的资产的波动率较小时较好，抽样的个数对它没有影响，但考虑红利时它稍有下降但仍较好。

The former sampling fish is used gill net and the latter is used composite method to fish.

前者以流刺网法，后者以复合性渔法捕获鱼类。

Using patented sensor technology, USTER INTELLIGIN online sampling detection system monitors the quality of ginning process ...

利用专利的传感器技术，USTER INTELLIGIN通过在线取样检测系统监控轧棉工艺的质量。。。。

In order to evaluate the uncovered gold-bearing structures, a new geochemical evaluation program, which consists of lengthwise sampling distribution and corresponding classification for data interpretation, is suggested.

为评价裸露含金构造，提出了一种新的地球化学评价方案，包括纵向采样布局和数据解释的对应分类法。

In the meantime, reporter discovery, at the beginning of this year September, the food of the function of health care of 2009 year designation that office of commission of safety of food of city of hill of copper of the Anhui province releases and health food sampling observation are unqualified in list," clear fat lotus root of 3 days of " because goosefoot seed capsule reducing weight is illegal add " hydrochloric acid Xibuquming " and rank among them.

同时，记者发现，今年9月初，安徽省铜陵市食品安全委员会办公室发布的2009年度标示保健功能的食品及保健食品抽检不合格名单中，"清脂三天"藕藜籽减肥胶囊因非法添加"盐酸西布曲明"而名列其中。

The sampling of a real object model is a main modeling method in a graphic generation system.

进行实物模型采样是图形生成系统三维数据建模的一种重要手段。

On the basis of the minimum scale soil nutrient distribution generated randomly based on the given values of mean, standard deviation and related distance, or obtained by geostatistics analysis based on soil sampling data, the amount of fertilization, yield and fertilization use efficiency at different scales were calculated by related fertilizer models and yield models supported by geographical information system and computer simulation, then the simulation result was intuitively visualized by curve graphics and RGB primitive colors synthesized image and thematic maps.

系统通过随机数生成法或地统计分析法生成最小尺度条件下的土壤养分空间分布数据，以此为基础，采用GIS、计算机模拟技术模拟不同尺度的养分空间分布，并以肥料效应模型和产量模型计算不同尺度条件下的施肥量、产量和肥料利用效率，最后通过曲线图、三原色合成影像和GIS专题图实现形象直观地表达模拟结果。

A banknote recognition photoelectric system based on grating spectrometer was developed, in which aphotomultiplier tube was used as a detector and a computer sampling interface was designed by VC++ language.

以光栅光谱仪为基础，光电倍增管作为探测器，运用VC++语言设计了计算机采样界面，形成了荧光光谱分析的钞票识别光电系统。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。