1.
Alternate signal system
互亮（换）号志系统
2.
Simple or limited progressive system
单一（简单）递亮（续进）式号志系统
3.
Dynamic traffic signal control
动态交通号志控制系统
4.
a system of symbols and symbolic representations.
符号和符号标示的系统。
5.
Cleared Lane Marking System
已排雷通道标志系统
6.
cardinal marks of buoyage system A
浮筒系统A方位标志
7.
photoluminescent exit marking system
荧光安全出口标志系统
8.
secondary signal system
二级信号系统 次级信号系统
9.
The Application of the Traditional Figures in the Logo Design;
中国传统图形符号在现代标志设计中的应用
10.
The Perfect Combination of Chinese Traditional Auspicious and Modern Emblems;
中国传统吉祥符号与现代标志设计的完美结合
11.
It is not Necessary to Unify Sequential Number of Books--Debate with Li Chunli;
“书次号完全不必统一”吗——兼与李春利同志商榷
12.
On Relationship Between Ruling Class Will and Social Public Will;
论统治阶级意志与社会公共意志的关系
13.
Photoelectric Signal & Systematic Analysis
光电信号与系统分析
14.
nuclear magnetic resonance signal survey system
核磁共振信号观测系统
15.
airfield ground lighting
飞行区地面灯号系统
16.
remote auto-dialing warning system
遥距自动拨号警报系统
17.
automatic dialling mobile telephone system
自动拨号移动电话系统
18.
equal signal system
等信号无线电导航系统