1)roof live load,屋面活载2)characteriseic value of live load on floor or roof,楼面、屋面活荷载标准值3)combination value of live load on floor or roof,楼面、屋面活荷载组合值4)roof load,屋面荷载5)quasi-permanent value of live load on floor or roof,楼面、屋面活荷载准永久值6)floor live load,楼面活载
