| | AWA6223S型声校准器(4声压级校准,1级) | 29 | ￥2964.00 | ￥2964.00 | | ￥2964.00 |  |
| | AMBD-01 数字粉尘标定系统 | 5000 | ￥500000.00 | ￥500000.00 | | ￥500000.00 | |
| | Cole-Parmer® 更换离子强度调节剂，1加仑 | 7 | ￥753.50 | ￥753.50 | | ￥753.50 | |
| | Spectra/Mesh 145799 屏幕光盘式滤膜 | 12 | ￥1210.00 | ￥1210.00 | | ￥1210.00 | |
| | 19-1/2“L10微米标称额定滤芯，打褶涤纶 | 12 | ￥1210.00 | ￥1210.00 | | ￥1210.00 | |
