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.According to the survey, 30% of households in China commonly used medicines have been over the period of validity.At the top of the bottle cap is a can set up their own time dial, a cycle for a year and a pellet for a month, a small lattice for a day. To remind the shelf life, when buy drugs directly to the limited dial quasi, needle will start turning, turn will change disk will become red, if the change in the overall red means that the shelf life of the drug has to be eating again. Need to be disposed of. The bottle cap itself is also provided with the function of crushing the tablet.
Henan University of Technology