1.
ratio of the pole spacing to the bore diameter of the pole pieces
极靴的间距与孔径比
2.
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。
3.
overall f - number
总光圈大小, 总孔径焦距比
4.
Study on Micro Hole Drilling with High Aspect Ratio by Micro EDM
大深径比微细孔电火花加工技术研究
5.
Rapid EDM systems for micro and small holes with high-aspect-ratio
大深径比微小孔快速电火花加工系统
6.
Uncertianty Evaluation of Measurement of Specific Surface Area and Pore Size Distribution of Porous Material
多孔材料比表面积与孔径分布测量不确定度评价
7.
The effect of the specific surface area and pore radius distribution of inorganic materials on the capacity of absorbing and desorbing moisture in the air
多孔结构无机材料比表面积和孔径分布对调湿性的影响
8.
Experimental Study on Comparison of Geometric Rectification Methods of SAR Images
合成孔径雷达影像几何处理方法对比实验研究
9.
The Study of Data Compression Algorithm for Synthetic Aperture Radar at Low Bit Rates
低比特率合成孔径雷达数据压缩算法研究
10.
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
11.
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
12.
Machining process of oblique pilot hole for spinnerets with super high length-diameter ratio
超大长径比喷丝板斜导孔加工方法研究
13.
Broe gauges are used to measure internal hole dimensios and shape errors of different diameter and depth by comparative method.
内径百分表适用于比较法测量不同直径和深度和内孔尺寸及误差。
14.
condenser aperture
聚光镜孔径;聚光镜孔径;聚光器孔径;聚光器孔
15.
diameter and number of hole
喷嘴量孔孔径及数目
16.
large core high numerical aperture fiber
大芯径大数值孔径光纤
17.
The diameter of the objective of a telescope.
孔径望远镜物镜的直径
18.
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