Noun:

1. a device that controls amount of light admitted

2. a natural opening in something

3. an man-made opening; usually small

1.孔；缝隙；缺口
Anaperture is a narrow hole or gap.

e.g. Through theaperture he could see daylight.
透过缝隙，他能看见日光。

2.（照相机的）光圈，孔径
In photography, theaperture of a camera is the size of the hole through which light passes to reach the film.

e.g. Use a smallaperture and position the camera carefully...
用小光圈，仔细调整相机位置。
e.g. The camera has a 32mm lens with a maximumaperture of f/4.5 and a fixed shutter speed of 1/100sec.
这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。

1. 孔径：ess 功能 孔径(aperture)切换功能 10 级可调(-5-+5) LENS SETUP 简易后焦点调整功能 电子快门速度:可选关闭或 1/50 秒-1/50000 秒 屏幕字符显示:16 个字母或数字符号 电缆补偿功能 CHROMA 图象色度/色相调整功能(调整范围-5-+5) 图像隐私遮盖功能:最多 8 个区域遮盖 远程通讯控制接口 RS485,

2. 孔：血管内溶剂、溶质与组织液的交换主要通过毛细血管内皮完成的,水通过内皮细胞膜,更多溶质通过内皮细胞裂孔(aperture)筛孔(fenestration)和非连续内皮连接(discontinuous endothelium),大分子通过内皮细胞之间裂缝(cleft),

• The size and shape of the apertures in the sternum.

  出自：C. Darwin

• Raising my head to an aperture among the leaves, I could see clear down into a little green dell.

  出自：R. L. Stevenson

• She opened the door..a little way, and slipped through the aperture.

  出自：R. P. Warren

For flash photography, set the aperture at f.5.6.

用闪光照相，要把光圈孔径定为5.6。

Through the aperture he could see daylight.

透过缝隙，他能看见日光。

Use a small aperture and position the camera carefully...

用小光圈，仔细调整相机位置。

The camera has a 32mm lens with a maximum aperture of f/4.5 and a fixed shutter speed of 1/100sec.

这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。

Characteristics of synthetic aperture processing in radar altimeter show that range correction should be done.

通过分析高度计中合成孔径处理的特点,说明在商度计中使用合成孔径技术时,应该进行距离校正.

Uncertainties and complexities exist in the jamming effectiveness evaluation of synthetic aperture radar ( SAR ) .

SAR 干扰效果评估具有很大的不确定性和复杂性.

Synthetic aperture technology is introduced to microwave radiometer in order to improve the space resolution.

为了提高微波辐射计的空间分辨率,出现了综合孔径微波辐射计.

The optimum aperture of an aerator is smallest at the water depth of 4 m.

一般水深在4m左右,曝气器的最优孔径最小.

The only light came through a narrow aperture.

仅有的光亮来自一个小孔.

The pneumatic plug the annex the measurement the two parts of the aperture ring.

烦请帮偶翻译一下:用气动塞规测量附件中所圈两部分的孔径.

A superconductor transfers the power from the flux aperture to the power cell.

一个超导体将通行孔径的能量转到能量电池中.

The beam then arcs circumferentially back to a negatively charged high energy flux aperture.

然后光束沿着四周成弧状折回一个充满负电的主能量通行孔径.

Antheral introversion or extroversion, slit or aperture leave.

花药内向或外向, 纵裂或孔开.

Expand the camera aperture, avoid the bad effect of light flash.

扩大了的摄像头孔, 避免了闪光灯反射光的不良效果.

aperture Priority Auto Mode and properly set shutter speed indicator lit.

光圈优先自动模式和正确设置快门速度指标点燃.

The effects of temperature to phase, crystallization degree and aperture distribution are examined.

研究了温度对物相 、 结晶度和孔径分布等的影响.

Angle masters with various angles, prisms, corner cubes and lage aperture and high precision cemented plate.

不同角度的标准角块 、 棱镜 、 角反射器(角锥棱镜)及大口径、高精度的光胶板.

Cameras with manual exposure allow the photographer to independently control shutter speed and aperture.

那些能有手动曝光功能的相机,能让用户独立控制快门速度与光圈大小.

You may also want large aperture ( size ), but don forget portability and convenience.

你也许想要更大的口径, 但是不要忘了便携性和方便性.

The heartache of fuzzy eyes, I seem to see the aperture of the happiness.

心痛的假面模糊了双眼, 我看不到幸福的光圈.

A technique for compressing aperture radar ( SAR ) image data using multiwavelet transform and prefilter methods is considered.

利用上述特点将多小波变换应用于 SAR 图像压缩.

Figure 1 illustrates the principle, but for a triangular aperture.

图一描绘了这个原理, 不过用的是三角形光圈.

Actually, the mask and openings are not really necessary; the mirror alone could serve as aperture.

其实, 挡光板及其上的开孔都是不必要的; 单单反射镜本身就可以起小孔的作用.

Synthetic aperture Radar Interferometry ( InSAR ) provides a new tool to study geo hazards and survey topography.

合成孔径雷达 干涉测量技术为地形测量和地质灾害的研究提供了一个全新的工具.

Into this aperture a droplet of mercury was poured.

一小滴水银滴进了这个小孔.

For flash photography, set the aperture at f.5.6.

用闪光照相，要把光圈孔径定为5.6。

Use a small aperture and position the camera carefully.

用小光圈，仔细调整相机位置。

Through the aperture he could see daylight.

透过缝隙，他能看见日光。

The camera has a 32mm lens with a maximum aperture of f/4.5 and a fixed shutter speed of 1/100sec.

这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。