Alternate signal system
互亮（换）号志系统
Simple or limited progressive system
单一（简单）递亮（续进）式号志系统
Dynamic traffic signal control
动态交通号志控制系统
a system of symbols and symbolic representations.
符号和符号标示的系统。
Cleared Lane Marking System
已排雷通道标志系统
cardinal marks of buoyage system A
浮筒系统A方位标志
photoluminescent exit marking system
荧光安全出口标志系统
secondary signal system
二级信号系统 次级信号系统
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
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
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
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
Photoelectric Signal & Systematic Analysis
光电信号与系统分析
nuclear magnetic resonance signal survey system
核磁共振信号观测系统
airfield ground lighting
飞行区地面灯号系统
remote auto-dialing warning system
遥距自动拨号警报系统
automatic dialling mobile telephone system
自动拨号移动电话系统
equal signal system
等信号无线电导航系统