1·As a whole, the preserved Cu reserve in China is relatively stable, that is, the newly explored reserves are in balances with the consumed reserves.
近十余年来我国铜矿保有储量总体上处于一个相对平稳的状态，即新增探明储量和矿山消耗储量大体平衡。
2·The bauxite ores explored and utilized occupies only 8% of the total reserves.
目前已开发利用的资源储量仅占保有储量的8%，开发利用铝土矿空间广阔。
3·This paper has chosen Qixing River nature Reserves as case study and explored the regulation mechanism of this nature reserve.
文章以七星河国家级湿地自然保护区为案例，深入研究了保护区管制的现状和失效的原因。