Grassland A major world plant community ( biome ) dominated by grasses ( Poaceae ).草原:以禾本科草类 ( 禾本科 ) 为优势物种的植物群落 ( 生物群系 ).The Spectacled Bear also lives in this biome.有眼睛状花纹的熊也居住在这里.The role of Boreal forest biome in clim...
已调集了增援警力来平定骚乱。Extra police were called in to quell the disturbances.他的情绪终于平定下来.He calmed down in the end.他们只得叫来警察以平定骚乱.They had to call the police in order to put down the riot....
研究了用酸性乙腈硫酸铜体系从辉铜矿中提取铜.Leaching of copper from chalcocite with acidic acetonitrilecopper sulphate system was studied.除自然铜和孔雀石之外, 还有黄铜矿 、 斑铜矿 、 辉铜矿 、 铜蓝和黝铜矿等.In addition to the natural copper and malachite, there are chalc...