发布时间:2025-01-31 19:02:07
答:
选罗茨风机要两参数:
压力风量.先根据BOD除量计算需氧量,再根据曝气设备氧转移效率及其些附加条件计算风机工作状况需气量,根据空气需要量池体水深选择风机,
相关计算公式《三废设计手册----废水卷》,,情况建议风量8立每,压力50KPA-55KPA即,选择百事德或锦工罗茨风机,实惠耐用,让算.
我家的入户花园墙面是深咖啡色仿古砖鞋柜和储物柜都做的黑胡桃色太暗太重请问家具换成什么色好
2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07按规范机房是不能设置在首层或者顶层的但现在不得以设计在首层的某间房间里对于防雷方面需要怎样做呢
2025-01-31 19:02:07 2025-01-31 19:02:07 2025-01-31 19:02:07