overhead projectors

audiovisual systems - overhead projectors - film rolls, cores and winders (dimensions)

视听系统。高架式投影机。胶卷、卷芯和卷片机（尺寸）

evaluation of still projectors with incandescent lamps; measurement of temperature in the projection area of overhead projectors

带投光灯的幻灯放映机的鉴定.工作投影机的温度测量

it makes a summary of the methods to deal with some common defaults as well as management and maintenance of overhead projectors.

提出了投影机在使用中常见故障的处理方法以及管理和维护的一些做法。

both have air conditioning, telephone lines, amplification systems, projectors, recorders and overhead projectors.

两间会议室内都有空调、电话、扬声器、幻灯机、录音机、投影仪等。

this paper first introduces the types and principles of overhead projectors, and then compares the functions of overhead projector bulbs.

在分析投影机的种类和工作原理的基础上，对投影机灯泡的性能做了对比；

audiovisual systems - overhead projectors - transparencies and transparency frames (dimensions)

视听系统.高架放映机.幻灯片和幻灯片框架的规格（尺寸）

audiovisual systems (photography) - overhead projectors - methods for measuring and reporting performance characteristics

视听系统（摄影）。高架投影机。测定和记录性能特征的方法

photography; overhead projectors; part 2 : transparencies and transparency frames; dimensions

摄影技术.高架放映机.第2部分：透明软片及其框架.尺寸

test transparencies for overhead projectors

高射投影仪的分辨率试验标准测试图

photographie; overhead projectors; methods for measuring and reporting performance characteristics

摄影术.架空放影机.性能的测量和测量报告方法

while it reaches back to academic settings and overhead projectors, it can still serve to note details on the presentation medium.

尽管这使人回想起教学环境和投影仪，但它仍然可用作演讲的媒介以提醒人们注意到细节。

communication procedures will include the use of overhead projectors , translators, and demonstration techniques.

交流的过程将包括投影设备、翻译以及示范等技巧来进行。