袋式除尘器的过滤风速要综合哪些因素来确定?
参考答案:
过滤风速要综合粉尘的性质、进口含尘浓度、滤料种类、清灰方式、工作条件等因素来确定。
— Well, my daughter takes great interest in most of the food on the menu.
— Thanks. ______ ?
Salad, fried fish, chips and orange juice, please.
A.Shall I take your order
B.At your service
C.What to follow
D.Can I help you
( )地租理论是城镇土地估价的基本理论依据之一。
A.马克思 B.资产阶级古典经济学家C.资产阶级庸俗经济学家 D.西方新古典主义城市