4月20日,参观者在参观利用立体无土栽培技术种植的辣椒。当日,以“绿色·科技·未来”为主题的第十八届中国国际蔬菜科技博览会在山东寿光开幕。[新华社 朱峥 摄] Visitors view soilless cultivation device displayed during the 18th China (Shouguang) International Vegetable Sci-Tech Fair in Shouguang of east China's Shandong Province, April 20, 2017. The fair kicked off here on Thursday. (Xinhua/Zhu Zheng) |
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