整个项目，由试点企业范围，以推出，花了几个月的时间。
The entire project, from pilot to enterprise wide rollout, took a few months.
在18个月的时间里，这187家试点企业的废水污染减少了40%。
Within 18 months, water pollution from the 187 pilot plants fell by 40 percent.
截至2009年，中国已有9家钢铁企业成为循环经济试点企业。
Up to 2009, there were nine pilot steel plants for implementing circular economy in China.
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