促进一个产业健康、快速发展的因素有很多,有经济层面的,有市场层面的。但还有一个更重要的因素,就是来自政策层面的影响。那么,安防行业的发展受政策影响的程度有多大?主要体现在哪些方面? There are many factors that promote the healthy and rapid development of an industry. There are economic and marketable factors. But there is one more important factor that comes from the policy level. So, the security industry development affected by the extent of the policy? Mainly reflected in what areas?