The essential mission of mineral resource management as national property is ownership management.
矿产资源资产管理的根本任务是产权管理。
The essential trace mineral, selenium, is of great importance on human health.
硒是人体必需的微量矿物质，对健康有着极其重要的作用。
The essential trace mineral, selenium, is of great importance on human health.
硒是人体必需的微量矿物质，对健康有着极其重要的作用。
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