companies also had a volatile decline. Major oil and gas companies saw their stock prices decrease, with a significant drop in net profits. Stocks prices for major solid mineral companies initially fell but later recovered, with net profits declining by more......

环境监测的效率和准确性，这将为数据收集、综合和分析带来变革。英国地质调查局正在开发传感器在地质上的应用，例如传感器网络（SENSOR NET），这是由北约克郡土壤湿度传感器组成的网络。　　我们将开发实时监控有机污染物和硝酸盐污染物的技术，在地表以下运用传感器技术，充分利......