guarantee ratio是什么意思 guarantee ratio怎么读
guarantee ratio的用法和样例
- Construction of the water source place in alluvial-fan of MiLan River provides the guarantee for water supply on people life and production in the Robupo Sylvite mineral area.
米兰河冲洪积扇水源地的建设是为罗布泊钾盐矿区生活和生产用水提供供水保障。
展开更多