1)  ceiling curtain
天幕
1.
The concept and project status of design were introduced of ceiling curtain sound amplifying system for world trade building in Beijing.
介绍了世贸天阶天幕扩声系统的设计理念与工程概况。
2)  Cerebellum tentorium hernia
天幕疝
3)  Tentorial sinus
天幕窦
4)  tentorial notch
天幕裂孔
5)  sky screens
天幕靶
1.
The principle for measuring motion parameters of projectiles using two sky screens in vertical intersection manner;
双天幕靶交汇测量弹丸飞行参数原理
2.
Bases on the principle and apptication characteristic of sky screens,the levs and slits for consisting the optical system in sky screens,the function of optical trausformation,as well as the relation ship between them have been discusses in the present paper.
基于天幕靶的工作原理及现场使用特点,论述了组成天幕靶光学系统的透镜、狭缝、光学变换的功能及相互之间的关系,分析了光学成像透镜的焦距和孔径、狭缝尺寸(长、宽)和位置、光学变换方法等对形成光幕、汇聚光能的作用,以及对探测视场、探测灵敏度、工作稳定性等的影响。
6)  sky screen
天幕靶
1.
Study on technology of anti-interference of sky screen based on CPLD;
基于CPLD的天幕靶抗干扰技术研究
2.
A circuit to automatically recognize projectiles signal on sky screen;
一种天幕靶用弹丸信号自动识别电路
3.
The traditional methods of measuring projectile′s velocity with sky screen and the problems confronted within measuring motion of duplex ammunition and repeated firing ammunition are described briefly.
简述了利用常规天幕靶测量弹丸运动速度的方法及在用于双头弹、连发弹速度测量中存在的问题,提出了一种在现有天幕靶基础上进行改进设计的方法,用信号采集卡代替天幕靶中的电子计时仪,并编写相应的信号处理软件,直接对天幕靶采集到的弹丸过靶信号进行分析处理,提取出信号的时间间隔。
参考词条
补充资料：天幕
1.天。天空如幕覆盖大地﹐故称。 2.帐篷。 3.舞台后面悬挂的大布幔﹐演剧时配合灯光以表现天空景象。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。