The definition of operator homeomorphism mapping , together with its characterizations, is given in this paper.在算子开集理论中给出了算子同胚映射的概念, 得到了算子同胚映射的若干性质....
Around midday, the fog lifted and puffy cumulus clouds appeared across the sky.中午前后雾散了，满天出现了蓬松的积云。From his bed he could see the great cumulus clouds that hung in the blue sky.躺在床上,可以望见碧蓝的天空中飘浮着大块团状的积云.A polar landscape o...
B from the family of boron have autocatalytic effect.硼族元素对焦炭反应性起负催化作用.The NO oxidation is autocatalytic.NO氧化是自动催化的.The reactions are autocatalytic and quickly send the cell into thermal runaway where It'self destruc...