| 摘要 |
<p>The USB power cable (202) used to operate electric breast pumps (301), can be inserted into a USB interface (101, 102, 103, 104), so as to meet demands of working and travelling mothers where there is no power supply. Its uniqueness is that it makes the electric breast pump ranging from 3v-12v workable by converting and regulating power sourced from USB in common voltage of 5V.</p> |
