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In the twentieth century, David Hilbert employed axiomatic reasoning in his attempt to update Euclid and provide modern foundations of geometry.

古典文书允许在几何结构的指南针和直尺。

Four segment vector quantizers of the local cosine transform coefficients are employed, and Linde-Gray-Buzol algorithm is applied to design the codebooks.

对局部余弦变换系数采用分维矢量量化方法进行量化，码书设计采用LGB算法。

We can provide various Super Fuel Saver for improving the combustion , fuel oil boilers from appliance boilers to heat power boilers, various combustion furnaces, and internal combustion engines in automobiles (two-cycle and four-cycle, diesel and gasoline), trucks, ships and jets, where the fuel employed is liquid or gaseous hydrofuels, such as oil, gas, natural gas, propane, kerosene, gasonline, fuel oil, butane, ect.

我们可以提供各种超级燃料金丹改善燃烧，燃油锅炉从家电锅炉热电站锅炉，各种燃烧炉与内燃机汽车(双周期和四周期，柴油和汽油)，卡车，船只和飞机，凡受聘燃料是液态或气态hydrofuels ，如石油，煤气，天然气，丙烷，煤油， gasonline ，燃油，丁烷等。

A set of complex Morlet wavelet are applied on projection slice of each direction to decompose each projection into several frequency channels,the average and variance extracted are computed in each frequency channel,and then linear regression model is employed to computer realationship feature between frequency channels.1-D DFT is applied to features and the amplitudes of Fourier coefficient are selected as features,then the extracted features are rotation invariant.

该算法是将一定大小的图像进行二维傅里叶变换；其次在变换后的图像中央选择一个圆盘区域，并在方向［0°，180°］内进行等间隔角度频率抽样，实现方向分解，使用一组复Morlet小波对每个方向上的映射切片进行小波变换，从而实现多通道频率分解；在各个频率通道中计算均值和方差作为特征，并利用线性回归模型计算频率通道之间的关系特征；将特征沿方向进行一维傅里叶变换并取其幅值，从而得到旋转不变性特征。

In using the field expression with Fourier integral form to calculate the performance of SLIM, the fast Fourier transformation algorithm is first employed in this dissertation to compute the Fourier integral.

在应用傅里叶积分形式的场量表达式计算单边直线感应电机的特性时，本文首次引入快速傅里叶变换算法计算傅里叶积分。

Workflow technology was employed for controlling the FRACAS workflow.

采用工作流技术来控制 fracas 流程，实现了流程可定制性。

The method has been successfully employed in computer simulation for the fractional frequency transmission system.

该方法已成功地应用于分频输电系统的模拟仿真计算。

In the third part, a pilot-scale plate-and-frame ultrafilter and four kinds of membrane were employed to fractionate and concentrate the straw Soda-AQ black liquor.

第三部分，用中试规模平板超滤器和不同材质，不同截留分子量的四种膜对麦草Soda-AQ黑液进行了超滤试验。

Macroporous adhesive resin column and Sephadex LH20 column were employed to separate and fractionate the crude extract and the structures of the main compounds were analyzed by HPLC-ESI-MS.

通过大孔树脂结合SephadexLH—20对芒果多酚粗提物进行分离纯化和分级制备，采用HPLC-ESI-MS对主要组分的结构做了初步分析。

The results above will further be employed in the design calculations of the foam fractionation column.

这些定量结果将进一步用于泡沫分离塔的设计计算中。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。