stenopaic spectacles

This paper has explained the principle for which the small aperture glasses have some positive effects on the vision for the myopic and the hyperopic, and discussed the craft for making the small aperture glasses.

解释小孔眼镜对近视眼和远视眼都有助视作用的原理， 讨论小孔眼镜的制作工艺。

It is proved that a small circular aperture has the positive and minus focal distances,and the research experiments for small aperture glasses are introduced concisely.

提出了证明小圆孔具有正、负焦距的一种方法，简要地介绍了关于小孔眼镜的实验研

EFEAL Extended Field Elliptical Aperture Lens

可扩展扫描椭圆孔镜头

The diameter of the objective of a telescope.

孔径望远镜物镜的直径

condenser aperture

聚光镜孔径;聚光镜孔径;聚光器孔径;聚光器孔

ultra-rapid lens

甚大光强[相对]孔径物镜

inspection glass

窥视孔玻璃，观察镜

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

Single Port Laparoscopic Surgery,The New Evolution of Endoscopic Surgery

单孔腹腔镜手术:内镜手术的新进展

The lens or lens group closest to the eye in an optical instrument;an ocular.

目镜光学仪器中靠近眼睛的透镜或透镜组；窥孔

Screening for retinopathy: This is performed when pupils are dilated, either by fundoscopy or retinal photography.

视网膜病筛检：眼底镜或视网膜镜检查，扩张瞳孔。

Recent advances in endoscopic therapy for diagnostic and therapeutic endoscopy-associated perforations of the digestive tract

消化内镜诊疗相关性穿孔的内镜治疗现状

Endoscopic-assisted clinical anatomy of supraorbital keyhole approach

眶上锁孔入路内镜辅助显微镜应用解剖研究

lensless photography = pinhole photography

针孔摄影﹝利用针孔代替镜头的摄影方法﹞

Comparative study of two-port and three-port laparoscopic cholecystectomy

两孔法和三孔法腹腔镜胆囊切除术的对比研究

The polish of the furniture reflected our faces like a mirror.

家具的光亮就像镜子反射我们的面孔。

Pinhole Alc Lens

针孔型自动亮度控制镜头