冰水系统每隔三个月更换新水一次，若无法更换请加除锈剂。

Change the water of ice water system every 3 months. If not possible, please add rust remover.

youdao

冰水系统每隔三个月更换新水一次，若无法更换请加除锈剂。

Change the water of ice water system every 3 months. If not possible, please add rust remover.

youdao