A perfect measurement and control system can increase windtunneloperation efficiency, lower the windtunnel cost and enhance measurement accuracy.
完善的测控系统还能提高风洞的运转效率，降低风洞的运转成本。
2
Natural ventilation that made use of piston wind induced by metro operation at the top opening of metro tunnel is a possible means of ventilation technology.
在地铁区间隧道顶部开孔，利用地铁列车运行产生的“活塞风”进行自然通风换气是一种可能的通风技术手段。
3
BFH-series strain gages can be cured without pressurizing so as to easy the operation of strain gages installation on a windtunnel balance.