| 摘要 |
The present invention promotes the effect of ″cool head and warm feet″ by a simple procedure of connecting the first and second thermostats, which are respectively connected to the first and second base temperature intervals, to each other by deploying a high temperature part, a medium temperature part, and a low temperature part on the first and second base temperature intervals for sequential temperature changes; and by providing the option to have the space between the quilting lines either wide or narrow. |
