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曲率半径

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For the radius measurement the autocollimator with converter objective is used.

曲率半径的测量使用带转换透镜的自准直仪。

They are common optical measurement and their distributions are obtained from the large sample data. Beta distribution is used as a unified distribution to simplify the research of optical measurement distribution.

通过对光学测量中常见的叉线对准以及焦距、曲率半径测量进行大样本数据采集和分析处理,利用实验方法得到常见光学测量数据的分布,并选择Beta分布统示表示多种分布,简化了光学测量中的分布研究。

4A series of factor such as the difference about the centre of figure and the shear centre, curvature radius, central angle is discussed.

4对曲线梁中的剪、形心位置的差异以及曲率半径、圆心角、预应力大小、摩阻损失等内力影响因素进行了分析。

In a preferred embodiment of the invention, the inner surface of the arcuate portion of the nose (16) is formed by a sector of a circle and has a radius of curvature which is no greater than about 0.070 inch (1.8 mm).

在一个本发明最佳实施例中,凸起(16)的弧形部分内表面由一个圆的一部分形成并具有一个不大于约0.070英寸(1.8mm)的曲率半径

Convex Al plates were also shocked with the confinement of plane glass,and the plane glass's confinement is still effective as long as the plate's circumflexion radius is greater than 400mm.

对于实际工程应用中有重大意义的非规则平面情形下的约束机制,实验表明,在曲率半径大于400mm时平面约束结构的作用依然有效。

The hybrid gel film on curved surface can replace traditional light-sensitive lacquer, and improve the grating's stability. The VLSG with the line density of 80l/mm was fabricated on a concave lens surface with curved radius of 100mm.

采用这种方法在曲率半径为100mm的凹球面基底上制作了平均线密度为80l/mm的光栅,并用环境扫描电镜以及数字图像处理法检测了光栅的线密度分布。

In the experiment,a He-Ne laser with waist of 0.6 mm is utilized to adjusting a plane-concave resonator with a concave mirror in a radius of 50 mm at measuring distance of 889 mm.

实验使用束腰为0.6 mm的氦氖光,其后加一优化好的透镜系统,在889 mm的距离下,对凹面镜曲率半径为50 mm的平凹腔进行对准。

When the cavity length is 140 cm and the radius of curvature of the full-reflective concave mirror is 300 cm, the Nd:YAG laser is operated in the stable mode-locking and a pulse train with 27 mJ energy and 35 ps pulse duration is obtained.

当腔长为140 cm,全反射凹面镜曲率半径为300 cm时,激光器运转在稳定的被动锁模状态,输出的锁模脉冲序列能量为27 mJ、脉宽为35 ps。

The law of the influence of contractive angle of taper nozzles and curvature radius of convergence nozzles' convergent section on jet structure parameters is revealed, and it can provide a basis for optimization selection and design about laser cutting nozzles.

揭示锥型喷嘴收缩段收缩角、收敛型喷嘴收敛段抛物线曲率半径对射流的流场结构参数的影响规律,为激光切割喷嘴的优化选择和设计提供有效依据。标签激光技术激光切割会聚型喷嘴流场结构流体动力学 laser technigue laser cutting assemble nozzle jet structure hydrokinetics

Through measuring curvature radius of the thin convex lens, we can measure refractive index of the liquid.

用液体和薄凸透镜可以组成液体透镜组,通过测量薄凸透镜的曲率半径,达到测定液体折射率的目的。

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