1.
ratio of the pole spacing to the bore diameter of the pole pieces
极靴的间距与孔径比
2.
The ratio of the focal length of a lens or lens system to the effective diameter of its aperture.
F值物镜或物镜系统的焦距与入射光孔直径之比
3.
The precision of measurement depends on inherent angle value, the sensitivity of levelling instrument, the diameter and the diseance between the electrodes.
观测精度与水准器本身的角值、敏度及电极直径和间距有关。
4.
Relationship between Interpupillary & Innercanthal Distance and Maxillary Anterior Teeth of People with Normal Occlusion
正常者瞳孔间距、内眦间距与上颌前牙的关系
5.
than that from the equator to the South Pole.
比赤道到南极间的距离稍远，
6.
The practice and application of kilometer-orientated large diameter and long-distance drilling
千米定向大直径长距离钻孔的实践与应用
7.
F-number: The figures marked on the lens collar to indicate the size of the lens aperture in relation to its focal length.It is the ratio of the aperture diameter to the focal length of the lens.
光圈值:刻划在镜头上用来表示镜头孔径与焦距关系的比值。经过选择的数字成一系列。
8.
overall f - number
总光圈大小, 总孔径焦距比
9.
Application of Polar Iso-distance Net in Drawing Borehole Track Plane Projecion and Analysing Borehole Inclination Law
极等间距网在钻迹成图及孔斜规律分析中的应用
10.
Direct and Inverse Remote Sensing Theories of Polarimetric Synthetic Aperture Radar;
全极化合成孔径雷达的正向与逆向遥感理论
11.
The velocity of the fluid is inversely proportional to the spacing of the streamlines.
流体的流速与流线的间距成反比。
12.
PolSAR Image Classification by Polarization Decomposition Associated with Subaperture Analysis
极化分解与子孔径分析相结合的极化SAR图像分类
13.
Its practicality effective aperture ratio has been improved to about92.8%, consequently the concen-tration efficiency of microlens array is increased.
其实测有效孔径比可达到92.8%极大提高了微透镜阵列的聚光效率。
14.
Investigation on the Relationships Between the Ignition Voltages and Distance Separating Electrodes for He Ne Lasers
氦氖激光管着火电压与极间距离关系的研究
15.
Study on interpretation of airborne SAR image and aerial photograph respectively
机载合成孔径雷达影像与航片判绘的对比研究
16.
Comparison on Processing of Large Diameter Cylindrical and Grinding Inside Hole with Rolling
大直径外圆和内孔磨削加工与滚压加工的比较
17.
Extreme of Splendour --Qu Yuan s aesthetic idea and its comparison with that of Confucius and Zhuangzi;
绚烂之极——屈原的美学观念及其与孔、庄的对比
18.
short focal length (high aperture) lens
短焦距(大孔径)透镜