查询词典 disc-spinning

For these two effective focal lengths, the spots on the image surface at zero view field, 0.7-view field and full view field are all inside the airy disc. The system MTF curve of each effective focal length are accordance with the corresponding diffraction limits curve. The biggest wave aberration is smaller than 1/4 wave lengths. The maximum field curvature and maximum f-theta system distortion respectively satisfies the precision demand of the laser marking machine in China.

系统像面在0视场、0.7视场和全视场的光斑都落在相应的爱里斑以内，系统的MTF曲线接近相应的衍射极限曲线，最大波像差小于四分之一波长，系统的最大场曲和最大f-theta相对畸变都很好地满足了国内激光打标机的精度要求。

Below you will find a repeat of our spot diagram showing the geometric focus as well as the diffraction disc.

下图你可以看到一个焦点处的点状图。

So even though the geometric focus is smaller than the diffraction disc, the star image 揵lows?

因此我们可以说，这样的结果就是受了衍射的影响，也就是衍射极限。

Analytic description of disc diffraction model is obtained using elliptical pits model and Babinet principle.

基于衍射理论，采用更接近光盘实际情况的椭圆型信息符模型并利用光盘的线性叠加原理得到光盘衍射模型的解析表达式，对三种主流盘片的盘片倾斜对循迹系统产生的影响进行定量的计算与分析。

Out of the diffraction disc.

当我们继续放大可以容忍的误差，下面这张我们可以看到，焦点处的斑点已经散落在衍射圈的外面。

Due to the numerical aperture of DVD pickup is large, and the characteristic size is small, the error of scalar diffraction theory is very large. The in-depth research work on vector diffraction of optical disc was carried out. The optical disk model was analyzed use the rigorous coupled wave theory, and some significative conclusion was obtained. These conclusions can use for guidance of scheme designing of optical pickup.

针对DVD读取头光学系统数值孔径大，光盘特征尺寸小，标量衍射理论误差大等缺点，采用矢量衍射理论对光盘的衍射进行了深入的研究，首次在光学读取头领域中将耦合波理论应用到光盘的衍射分析中，得到了一些有意义的结果，这些结果可以用来指导光学读取头方案的设计。

They are to digitize and process them into DVD format, burn them to disc, and then ship back to you what you asked for.

他们是数字化和加工成DVD格式，他们烧盘，然后船回你，你有什么要求。

It appeared to be about 30 feet wide with a disc-shape apparent, when lights on it dimmed.

这似乎是约30英尺宽的圆盘形状明显，当灯它变暗。

Objective: To investigate the relationship between optic disc parameter indexes and myopia diopter, age and sex, and analyze their effect on the early diagnosis of primary open angle glaucoma.

目的：研究视乳头参数与近视性屈光度、年龄和性别因素的关系及对原发性开角型青光眼早期诊断的影响。

①The factors of myopia diopter and sex influence the optic disc parameter indexes. The effect of age needs further research.

①近视性屈光度及性别因素影响HRTⅢ的视乳头参数检测值，年龄因素的影响须进一步研究分析。

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。