求翻译：2007年4月11日，在临沂经济开发区施可丰新厂区内，施可丰化工股份有限公司与中科院沈阳应用生态研究所举行了隆重的签约揭牌仪式，施可丰100万吨长效缓释肥生产基地、中科院沈阳应用生态研究所缓（控）释复合肥中试基地、中科院沈阳应用生态研究所缓（控）释复合肥产业化基地正式建立。是什么意思？

April 11, 2007, a grand signing unveiling ceremony was held at the new plant in the region of Linyi Economic Development Zone, Shi Feng, Shi Feng Chemical Co., Ltd. and the Chinese Academy of Sciences, Shenyang Applied Ecology Institute, Shi Feng 1 million tons long-lasting relief release fertilizer

April 11, 2007, economic development zone in Linyi Toyota new plant can be put in, the rate can be Feng Company Limited and application of ecological CAS Shenyang Institute held the grand opening ceremony of the contract, the rate may be 1 million tons & long-lasting slow release fertilizer prod

On April 11, 2007, in Linyi economic development zone Shi Kefeng in the new factory district, Shi Kefeng the chemical industry limited liability company and Academia Sinica Shenyang Application Ecology Research institute held grand signing to uncover the sign ceremony, Shi Kefeng 1,000,000 tons pers

On April 11, 2007, in linyi economic development zone effects can Feng new factory within, effects can Feng chemical company limited and Chinese Academy of Sciences Shenyang application ecological Institute held has Grand of signed uncovers brand ceremony, effects can Feng 1 million tons long-term s