发布时间:2025-01-16 10:04:46
能。回弹仪有两排读数,一面是兆帕值,就是直接读出混凝土强度,还有一面是读数值是需要换算的,测读数能换算成千帕。回弹仪的基本原理是用弹簧驱动重锤,重锤以恒定的动能撞击与混凝土表面垂直接触的弹击杆,使局部混凝土发生变形并吸收一部分能量。
我买了个jp5一6型的怡成血糖仪使用时不知校吗调到多少为准买的时候医
2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46 2025-01-16 10:04:46空调进气口我怕落灰尘用塑料盖住开空调时忘了拿下来后来拿下了但现在感觉制冷效果不好了怎回事
2025-01-16 10:04:46