front aperture

用法例句

The electromagnetic shielding effectiveness of aluminum foam was measured as a function of cell size and thickness when the frequency is between 50 and 1050MHz.

采用加压渗流法制备不同特征参数的开孔泡沫铝,在50~1050MHz电磁波频率内研究了开孔泡沫铝的屏蔽特性,并探讨了泡沫铝的孔径和厚度对其电磁屏蔽性能的影响。

The open-cell aluminum foams have been produced by pressure infiltrating process,and the structural parameters such as cell size and porosity of the aluminum foams were controlled by adjusting process parameter.

本文采用加压渗流方法制备开孔结构的泡沫铝,并通过调整工艺参数改变泡沫铝的孔径和相对密度。

The effects of the structural parameters such as cell size and porosity on the electrical conductivity of aluminum foams were investigated in this paper.

研究了孔隙率及孔径的变化对开孔泡沫铝导电性的影响。

The Measurement of Pore Diameter Based on IMAQ;

基于IMAQ的孔径检测

Study of Textile Artificial Vessel Wall Water Permeability and Pore Diameter Distribution

纺织基人造血管管壁水渗透性和孔径分布研究

The porosity,pore diameter and solubility of ceramsite filter made by these two methods were analyzed and compared.

对这2种方法制备的陶粒滤料的孔隙率、孔径和酸碱可溶率等指标进行了分析比较。

condenser aperture

聚光镜孔径;聚光镜孔径;聚光器孔径;聚光器孔

diameter and number of hole

喷嘴量孔孔径及数目

large core high numerical aperture fiber

大芯径大数值孔径光纤

The diameter of the objective of a telescope.

孔径望远镜物镜的直径

ultra-rapid lens

甚大光强[相对]孔径物镜

scanning aperture photomultiplier

扫描孔径光电倍增管

electronic boresight scanning

电子孔径瞄准器扫描

variable hole fruit grader

可变孔径的水果分级机

maximum opening diameter without reinforcement

不另行补强的最大孔径

L-band synthetic aperture radar

l波段合成孔径雷达

ratio of the pole spacing to the bore diameter of the pole pieces

极靴的间距与孔径比

filled aperture radio telescope

连续孔径射电望远镜

aperture synthesis radiotelescope

综合孔径射电望远镜

object lens of large relative aperture

大相对孔径(摄影)物镜

short focal length (high aperture) lens

短焦距(大孔径)透镜

testing method for apparent opening size of geotextiles

土工布有效孔径测定法

Antenna efficiency of an aperture-type antenna

孔径型天线的天线效率

Co-Phasing Error Study of the Sub-apertures' for Optical Sparse Aperture System

光学稀疏孔径成像系统子孔径位相误差研究