The exhibit also shows listening devices and a small spyglass called a monocular used during the same period.
这次展览还展示了同一时期使用的收听设备和一种被称作单目镜的小观察镜，
Objectives which consist only of one lens can be used for visual and photographic observations.
由单透镜组成的物镜可作目视和照相观测用。
The simple negative element Barlow increases eyepiece eye-relief.
简单的消极因素巴卢增加目镜眼救济。
A single lens in a pair of glasses; a monocle.
单片眼镜一对眼镜片中的一个单透镜；单片眼镜
Secret agents watched enemy troops and equipment with this monocular.
谍报人员用这种单目镜观察敌军和敌人的设备。
A cynic is a man who looks at the world with a monocle in his mind 's eye .
好挖苦人的人，是在心目中戴上单片眼镜儿看世事的人。
Abstract: Objective To evaluate the role of arthroscopy in the diagnosis and treatment of early tuberculous synovitis.
文摘:目的探讨关节镜在早期单纯滑膜结核诊断和治疗中的作用。
Objective To evaluate the role of arthroscopy in the diagnosis and treatment of early tuberculous synovitis.
目的探讨关节镜在早期单纯滑膜结核诊断和治疗中的作用。
Design of aspheric lens in helmet-mounted LLL night-vision system
头盔式单目微光夜视仪中非球面物镜系统的设计
wearing, or having the face adorned with, eyeglasses or an eyeglass.
戴着眼镜或单个镜片的眼镜，或者用眼镜或单个镜片的眼镜来装饰脸庞。
a bespectacled grandmother; the monocled gentleman.
戴着眼镜的老奶奶；那个戴着单镜片眼镜的绅士。
A simple periscope uses mirrors.
简单的潜望镜使用平面镜。
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
large concave mirror produces image that is magnified by the eyepiece.
由目镜产生放大图像的大的凹透镜。
large convex lens produces image that is viewed through the eyepiece.
通过目镜观察物体图像的大的凸透镜。
mounting for spectacles, goggles or the like
眼镜、护目镜或类似品的底架
frame for spectacles, goggles or the like
眼镜、护目镜或类似品的框架