排水平面设计图中一般检查井或出水口旁边有标注的标高这个标高是什么标高
2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39接触时测温 和非接触式测温 各有什么优点和缺点及适用场合急 需回答 急急急急 附加网址 谢谢
2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39 2025-01-19 14:30:39