请我除尘通风管道已知风量和风速也知道管径如果确定风机的风压和风机型号请高手指点多谢
2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28我一名做销售厨卫电器的销售员刚刚接触销售这一行业不懂的怎么去销售
2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28 2025-01-27 12:57:28