By testing, steam is the ble sterilizing method for herbal medicine.
By testing, steam is the ble sterilizing method for herbal medicine.
这些方法难以保证药性，或有残留，要不然就是费用昂贵。
By testing, steam is the ble sterilizing method for herbal medicine.
这些方法难以保证药性，或有残留，要不然就是费用昂贵。