a flat sheet of metal or glass on which a photographic image can be recorded

in this paper some experimental data and results on the measurement of the sensitive character of astronomical photographic plate are offered.

报道了作者关于天文照相底片感光特性测量的部分实验数据和研究成果，总结了在该领域内长期工作的经验。

srp-i infrared-sensitive light-induced compound photographic plate is adopted in our experiment. we investigated the condition and process of taking holograph in the light.

本实验采用srp—i型红敏光致聚合物干版，在明室条件下对反射式全息图的拍摄过程及条件进行了研究。

first, a photographic plate is coated with a light-sensitive material.

首先，把一个照相底片覆盖上感光材料。

the process is very simple. first, a photographic plate is coated with a light sensitive material.

这个过程非常简单，首先，把照相底片用感光材料包裹起来。

first, the photographic plate is coated with a light-sensitive material. the plate is positioned so that the image received by the telescope is recorded on it.

首先，底版被光敏材料所覆盖，然后被放置在那里好让用望远镜观看的图像记录在上面。

some distance above the lead block a photographic plate is placed.

在铅块上方某一距离处放一照相底板。

the method comprises the following steps: recording a required pattern onto a photographic plate through laser holography and manufacturing an optical mask plate with the holographic pattern;

该方 法包括：将需要的图纹通过激光全息术记录到感光板上，制得具有全息图纹 的光学掩模板；

a photographic plate or a piece of film so exposed.

感光胶片或底片的曝光的行为。

type 190 ballistics longitude-latitude photographic plate (bll, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版适用于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

one scientist noticed a mark on a photographic plate that was near uranium.

当时，有一个科学家注意到，在一个靠近放置铀元素地方的照相底板上多出了一个记号，他不知道这个记号是怎样会产生的。