two designs of pressure cookers are shown.
in the first one, to close the pressure cooker, place the lid and by turning the lid it will be closed.
in the second one, place the lid over the cooker body and then tilt and move the lid into the cooker body. then turn it to lock.
in the first design lid will be locked from outside and in the second design lid will be locked from inside the cooker body.
which design do you think that a better design?
what are the advantages and disadvantages of each design?
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