All I mentioned above is free, you can try this free service for set up events website, promotion, and statistical analysis.
喜欢免费的朋友不妨试试这个服务，搭建会议活动网站，推广，统计分析等功能都是免费提供。
2
Using SPC statistical control, optimization of inventory turnover period of production and service processes the operation, is designed to reduce process variation and waste.
采用SPC等统计技术控制，优化库存周转期的生产和服务过程那个的操作，目的是减少过程变差和浪费。
3
Statistic is a kind of special news service, statistical information is a kind of special product.