查询词典 sampling

Molecular analyses of samples of the genus from America and related genera have revealed that Gaultheria could be considered paraphyletic if the closely related genera of the "wintergreen group", i.e., Diplycosia, Tepuia and Pernettya, are excluded. These genera should be treated as part of Gaultheria; however, an infrageneric system of the genus may not be well established without sampling the Asian members of the genus.

对白珠树属产于美洲的类群和相关类群的分子系统学的初步研究则表明，该属与Diplycosia、Tepuia和Pernettya等属关系密切，可能应将这几个属并入到白珠树属中，但其属下分类系统关系还需要对产于亚洲的类群进行深入的研究后才能确定。

On the basis of molecular data, Gaultheria is not a member of the tribe Andromedeae in which it w as traditionally treated but is in a tribe of its own, Gaultherieae, along with other related genera Molecular analyses of samples of the genus from America and related genera have revealed that Gaultheria could be considered paraphyletic if the closely related genera of the "wintergreen group", i e., Diplycosia, Tepuia and Pernettya, are excluded These genera should be treated as part of Gaultheria; however, an infrageneric system of the genus may not be well established without sampling the Asian members of the genus.

对白珠树属产於美洲的类群和相关类群的分子系统学的初步研究则表明，该属与Diplycosia、Tepuia和Pernettya等属关系密切，可能应将这几个属并入到白珠树属中，但其属下分类系统关系还需要对产於亚洲的类群进行深入的研究后才能确定。

Firstly a qualitative criterion for determining the space between adjacent sections in the sampling process and Gaussian smoothing algorithm is proposed. Then a topological reconstruction method is given. At last a new reconstruction method based on the similarity between adjacent sections is proposed.

首先提出了确定断层间距的定性方法和数据平滑处理的高斯方法，然后给出了一种拓扑重构方法，最后提出了一种基于相邻层轮廓相似性的曲面重构新方法。

Under the one-dimensional situation, it introduces mainly the Newton-Cotes formula, the Gaussian quadrature formula, the numerical integration rule of sharp oscillatory function, the numerical integration rule by the methods of sampling and so on.

在一维情形下，主要介绍了Newton-Cotes公式，Gauss型求积法则，急速振荡函数的数值积分法则，抽样法求数值积分的法则等。

The stratified flow, slug flow and asymmetry annular flow upstream become symmetry annular flow with uniform film thickness after the spin generating element. The liquid extraction ratio is only determined by the diameter and number of the sampling holes and independent of gas and liquid flow rate of the main pipe, and the gas extraction ratio is mainly controlled by the liquid flow rate of the main flow loop.

分析表明，取样流体中的液相质量流量与主流体液相质量流量的比值主要取决于取样孔的数目和大小，而取样流体中的气相质量流量与主流体气相质量流量的比值则与主管路液相流量有关。

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。。。。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。