With the time passed, sterilization ability of the monitored disinfectant failed and the condition of recontamination getting severe especially in the 7th day.

各种消毒剂随使用时间延长，其抑菌性能逐渐减弱，被污染情况逐渐加重，在第7天十分明显。

youdao

With the time passed, sterilization ability of the monitored disinfectant failed and the condition of recontamination getting severe especially in the 7th day.

各种消毒剂随使用时间延长，其抑菌性能逐渐减弱，被污染情况逐渐加重，在第7天十分明显。

youdao