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Features:
1. The design of the machine is easy to fail, and the failure rate is low.

2. The closed design can prevent the dissolution from spreading, avoid the contamination of the container caused by the water wet, and save about 25% of the waste of the water.

3. The process of not needing to be dipped in medicinal water can improve the work efficiency by more than 10%, and there is sufficient self-examination time in the operation.