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....
切生肉、熟肉、蔬菜和拌色拉的青菜时要使用不同的切菜板。Use separate chopping boards for raw meats, cooked meats, vegetables and salads.把青菜吃掉。Eat your greens.她光吃青菜,不吃肉.She eats only vegetables and abstains from eating meat....
只有地下室窗户上的鼓风机不停地发出呼呼声.Only the ventilator in the cellar window kept up a cealess rattle.只有地下室窗户上的鼓风机发出无休无止的呼呼声.Only the venliator in the cellar window kept up a cealess rattle....