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....
加利福尼亚川流不息的车流使空气中充斥着污染物。A steady stream of California traffic clogs the air with pollutants.家禽身上发现的污染物，在禽蛋里也会有。Contaminants found in poultry will also be found in their eggs.多数城市都会产生各种物质混杂的污染物。Most cities generate a compl...
Make these sentences negative and interrogative.将这些句子改成否定句和疑问句.an interrogative raising of the eyebrows质疑地抬起眉毛an interrogative adverb疑问副词an interrogative sentence疑问句Poor Lord Warburton stared , an interrogative point in ...
The large hotel chains employ architects and interior decorators who specialize in hotel work.大型旅馆连锁聘有对旅馆业务有专门知识的建筑师和内部装璜师.MI 5 went in under cover as decorators.军情5局的人员以装修人员掩护身分进去了.Freestyle Interior Decorators contract...
人是自由意志的行动者.Man is a voluntary agent.像行动者那样思考,想思考者那样行动.Think a man of action a man of thought.行动者可以那种模式理解行动.Which , ipso facto, is apprehended by its performer as that pattern....