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Subway station is the center of the whole subway network. It not only undertakes the functions of personnel gathering and evacuation, but also undertakes the functions of various professional equipment and the operation of the whole system. The design of subway station is very important. The design of a station includes many specialties. In the traditional design, ISCS, BUS, FAS, PA, PIS and other professional engineers are difficult to achieve unity. BIM technology provides a collaborative design platform, which can promote effective communication among various specialties and integrate all resources. The application of BIM makes design communication more convenient, easy to adjust and improve, thus optimizing the design.板栗笑道：妹妹看见雪莲这么可爱，羡慕了？嫉妒了？我刚才还对葫芦哥哥说呢，也要生一个闺女呢。青山站起身，大声对郑长河道。学校里形形色色的学生都要面对他们各自的成长烦恼，Lindsay每日要面对家庭和学校的双重管教，Sam每日要忍受学校小流氓的滋扰。这是一个真实的故事，一个关于成长的故事，叛逆的怪胎和怪异的书呆，他们的生活在每一个高中校园里上演，折射出每一个人的青春。我家本来就是种田的，在黑莽原开荒他们不会觉得苦，可是，我跟弟弟都没了，爹娘爷爷奶奶心里一定难受的很。―“振翅高飞，走向世界！”Next is the Upload.prototype.changeState method, which is responsible for the specific behavior after switching states, including changing the innerHTML of the button and calling the plug-in to start some "real" operations: