1.Aclinic tone and assurgent tone take second place.Katabatic tone is always the shortest tone.

1.一个声调格中一般曲折调最长，平调和升调次之，降调最短。

2.For blower fan coil,adopting local drop ceiling when they are setting with new wind,but adopting a manner of katabatic wind when they arn’t setting with new wind.

2.机盘管，加新的部分采部吊顶，不加新的部分采的方式。

3.Such results are gotten: (1) Due to the unique topography the wind of Beijing area during the day time is southern anabatic wind and in the night is northern katabatic wind in summer.

3.(1)北京区域夏季边界层场受西北特殊地形的影响,夜间低层大气流场常表现为由北向南的坡,白天逐渐转为由南往北的上坡。