| 英国Casella CEL-620.A1精密积分声级计 | 183 | ¥18370.00 | ¥18370.00 | | ¥18370.00 |  |
| Whatman NC45硝酸纤维膜10401121 NC45 0.45uM 100MM 50/PK,尺寸:100mm 孔径0.45um | 21 | ¥2160.00 | ¥2160.00 | | ¥2160.00 |  |
| 自动萃取套筒/滤筒 2810-258 25 × 80 25个一包 | 8 | ¥880.00 | ¥880.00 | | ¥880.00 |  |
| Testo540照度计 | 8 | ¥826.00 | ¥826.00 | | ¥826.00 |  |
| testo K型热电偶0602 0645 | 4 | ¥405.00 | ¥405.00 | | ¥405.00 |  |