查询词典 ceiling projector

In this study, the slide projector is steered on the foundation of taking images by digital camera traditionally, according to the characteristic lack of real texture.

针对三维重建在计算机视觉和近景摄影测量目标物体纹理缺乏的特点，在传统用数码相机摄取影像数据的基础上，引入了投影器设备，构成投影器-数码相机系统。

Several years ago, the number of books have been mentioned in the Multimedia teaching, that the concept of multi-media not the same, that several media will only be a simple combination of (for example, the slide projector, sound recordings, video to mix).

在前几年的一些书籍中曾提到过多媒体组合教学，那种多媒体的概念不一样，那只是将几种媒体加以简单的组合(例如把幻灯、投影、录音、录相加以组合)。

I had requested slides, kind of adamantly, up till the — pretty much, last few days, but was denied access to a slide projector.

我有要求投映片，甚至有点儿固执，可能说，直到几日前还在要求。

We also adjust the projector and sound box.

我们还试调了投影仪和音响。

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

LEDs, on the other hand, offer a stable light output solution during the entire life of the projector .

发光二极管，另一方面，提供一个稳定的光输出的解决方案在整个生命的投影。

Sound Head: The optical sound reproducer mounted beneath the projector head but above the take-up reel support arm or magazine.

声头、音头：安装在放映机头下、卷轴支撑臂或片匣上面的光学声音重现装置。

No later than 1890, he combined his moving-picture projector with his talking machine.

不迟于1890年，他就把他的电影放映机和他的会说话的机器结合起来。

This research will study the equipment application position and behavior relation in class unit model. The equipment includes TV set, TV screen, projector, computer, telegraph board, locker and so on.

本研究将探讨教室单元形式其下设备之使用位置与行为关系，其设备项目为：电视、萤幕与投影机、电脑、揭示板和储物柜等辅助教学设备。

The password is used for authentication of the network connection between the projector 10 and the personal computer PC and cipher communication therebetween.

口令用于验证投影机10和个人计算机PC之间的网络连接以及其间的密码通信。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。