发布时间:2025-01-31 18:40:54
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.
消防灭火中雨淋阀组的开启方式有通过电气控制开启也就是控制电磁阀但是电磁阀在哪儿
2025-01-31 18:40:54 2025-01-31 18:40:54 2025-01-31 18:40:54 2025-01-31 18:40:54 2025-01-31 18:40:54 2025-01-31 18:40:54 2025-01-31 18:40:54 2025-01-31 18:40:54双击所要安装的软件时就马上会显示quot操作系统找不到已输入的环境选项quot
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