The main aim of this paper is determine the centrifugal fan with forward curved blades aerodynamic characteristics based on numerical modeling. Three variants o
<正> 今年八月六日至十日,香港中文大学英语系主办了一次语文教学研讨会。会议的名称是:“应用语言学研讨会:汉语社区的语文教学(Applied Linguis-tics Seminar:Language Teaching in the ChineseContext)”。北京、上海、广州、西安、哈尔滨等地十