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The choice for material of iron core, all the structure design and the method of collimation for the magnet were also described. Simulation results of Opera show that when the length of the core is 220 mm, the effective magnetic length is about 302 mm and the maximal magnetic density is around 0.215 T at four interior angles. Corresponding field uniformity is within 0.8% in the area of 133 mm×200 mm.

根据磁铁的设计指标，给出了磁铁设计要求铁芯材料选择方法、整体的结构设计以及如何对磁铁进行定位和准直，并采用Opera程序进行模拟计算，结果表明：当铁芯长度为220 mm时，磁有效长度大约为302 mm；磁感应密度最大的地方在4个内角上，约为0.215 T；在133 mm×200 mm的平面范围内，磁场均匀性优于±0.8%。

Adopting 6 standard liquids surface tension values and their corresponding contact angles on top of garlic skin and garlic kernel, solid surface tension were derived as 46 and 34 for garlic skin and garlic kernel, respectively.

采用6种标准溶液之表面张力值，配合在蒜皮与蒜仁上之接触角测量，可计算推导蒜皮及蒜仁固体表面张力值分别为46 和34 。

We suggest that instead of the general α0.5-V curve the α0-V curve be used to determine the fiber parameters, where α0, and α0.5 are respectively the angles corresponding to the first minimum and the main lobe half power point of the radiation pattern.

此外，还研究了平面检测器探测球面波束以及用"两点法"测量角宽等问题。实验中，建立了两套测量系统，在O.63μm与1.32μm波长处，测量了单模光纤参数，给出了实验结果，并与其它方法的测量结果作了比对。

Multiple experiments include whole sphere and sphere with cracks due to some spheres have a few cracks in the shell equatorial plane after welding. Then, the nominal compression stress-strain curves corresponding to different included angles θ between horizontal plane and welding line were plotted.

由于其中某些空心球在焊接时出现了孔洞，故分别做了完整和焊接出现孔洞的两种情况下的多组实验，得出了焊缝与水平面夹角θ成不同角度时压缩的名义应力－应变曲线。

This technique uses a spiral phase plate with a small central aperture placed on the Fourier plane of so imaging system. If the spiral phase filter is rotated by a certain angle around its central axis, a phase shift between the zero-order spatial frequency component and the remaining of the object is produced, and the magnitude of this phase shift is proportional to the rotation angle. Using this property, we can record a sequence of intensity distribution of the output beams corresponding to different rotation angles, and then digitally reconstruct the objects by using a phase-shifting algorithm. Both the theoretical analysis and simulation experiment results demonstrate the feasibility of this approach.

在成像系统的频谱面上放置中心带有一通光孔径的螺旋相位板，在输出面上记录输入物体经螺旋相位滤波后的输出像；将螺旋相位滤波器绕轴旋转一定角度，通过中心光孔的零频成份与其他高频成份间会产生与旋转角度成正比的相移；利用这一特点，通过记录多幅对应不同旋转角度的输出光场强度分布图，然后再用一定的相移算法实现被记录物体相位分布的数字再现。

Gloss is associated with the capacity of a surface to reflect more light in some dirctions than in others.the directions associated with mirrorreflection nor mally have the highest reflectances,measurements by this test method correlate with visual observations of surface shininess made at roughly the corresponding angles.

登录后回答可以获得积分奖励，并可以查看和管理所有的回答。登录|机器翻译的光泽与能力的一个表面，以反映更多的光线有些dirctions比others.the方向与镜子反射，也没有马利拥有最高的反射，测量了该测试方法与视觉相关的意见作出的表面shininess大致相应的角度。

This technique uses a spiral phase plate with a small central aperture placed on the Fourier plane of an imaging system. If the spiral phase filter is rotated by a certain angle around its central axis,a phase shift between the zero-order spatial frequency component and the remaining of the object is produced,and the magnitude of this phase Shift is proportional to the rotation angle. Using this property,we can record a sequence of intensity distribution of the output beams corresponding to different rotation angles,and then digitally reconstruct the objects by using a phase-shifting algorithm. Both the theoretical analysis and simulation experiment results demonstrate the feasibility of this approach.

在成像系统的频谱面上放置中心带有一通光孔径的螺旋相位板，在输出面上记录输入物体经螺旋相位滤波后的输出像；将螺旋相位滤波器绕轴旋转一定角度，通过中心光孔的零频成份与其他高频成份间会产生与旋转角度成正比的相移；利用这一特点，通过记录多幅对应不同旋转角度的输出光场强度分布图，然后再用一定的相移算法实现被记录物体相位分布的数字再现。

Cylinder pressure data at different oil temperatures (20℃、30℃、40℃) and corresponding different spark angles (0oBTDC、6oBTDC、12oBTDC ) were sampled in experiments of BN491DQ engine. Emissions at start were measured. Ignition advance angle, combustion cycle variation, intake system difference affect cold start. The deeply research has got some important conclusions.

实验采集了BN491DQ发动机在不同机油温度（20℃、30℃、40℃）对应不同点火提前角（0oBTDC、6oBTDC、12oBTDC）的气缸压力数据，对冷起动的排放，点火提前角、燃烧循环变动、进气系统差异对冷起动的影响进行了深入研究。

In this paper,the methods of distance geometry are used to explore the angles of a simplex ,and the second cosine law of a simplex in another form is obtained.

运用距离几何的研究方法，研究了和单形相关的角，给出了单形第二余弦定理的另一种形式，以此为基础得出了BartO¨s体积公式一种简洁的证法；探讨了单形的几个体积公式之间的联系，并推广了单形的一个体积公式。

An ancient cosmic or religious symbol formed by a Greek cross with the ends of the arms bent at right angles in either a clockwise or a counterclockwise direction .

万字饰：一个古老的宇宙或宗教象征，由希腊十字的各端成顺时针或逆时针字弯成直角而形成

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。