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美国Ｊａｃｏｂｓ工程公司对加拿大ＳｐｕｒＶｅｎｔｕｒｅｓ公司的中国宜昌磷酸盐矿肥项目所作的初步可行性研究认为该项目在技术上是可行的。初步可行性研究已证实拟供一期工程开采的两个最大的磷矿床已探明储量９０００万ｔ，可供该项目的前２４年开采，３个补充的矿床储
The preliminary feasibility study conducted by Jacobs Engineering Company of the United States on Canada’s Yichang Phosphate Mineral Fertilizer Project of Spur Ventures Company concluded that the project is technically feasible. The preliminary feasibility study has confirmed that the proven reserves of the two largest phosphorus deposits to be mined in the first phase of the project are 90 million tons, which can be used for the first 24 years of the project and 3 additional deposits are stored.