We draw the conclusion that isomorphism of mechanism ca n ' t express its motion in - out nature 5 、得出结论：拓扑同构不能反应机构的运动输入-输出本质。
2.
The president made a series of visits to the cities in the following days when he promised aid and reforms in the federal government ' s emergency response agency 总统将在随后的几天里对这些城市作系列访问，当时他在联邦政府的紧急反应处承诺提供救援设备重组联邦政府紧急反应机构。
