The naval vessel system is a complicated socio-technical system (STS).
舰船系统是一个复杂的社会技术系统(STS)。
The main business of Xinshan contains the building curtain wall technical system research and exploitation;
主要业务有建筑幕墙技术的系统研究与开发；
The main business of Xinshan contains the building curtain wall technical system research and exploitation;
主要业务有建筑幕墙技术的系统研究与开发；
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