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用法例句

According to conditions of both formation and present situation of exploitation of Hainan offshore Ti-Zr sand mineral, the necessity, feasibility and economical rationality for development of dredging technology are illustrated.

本文以海南海滨钛锆砂矿资源的赋存条件和开发现状为依据,论证了发展船采工艺的必要性、可行性和经济上的合理性。