Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

| A | | 1 | | B | | b | | C | | 人才招聘 | | D | | | | E | | 电子 | | F | | f | | G | | 克 | | H | | h | | I | | 我 | | J | | j | | K | | k | | L | | 升 | | M | | 米 |
| N | | n | | O | | o | | P | | p | | Q | |常见问题 | | R | | 研究 | | S | | | | T | | 吨 | | U | | u | | V | | v | | W | | 瓦特 | | X | | x | | Y | | y |

What is it used for?它是什么用呢？ of Intrauterine system宫内系统

An IUS is used to prevent pregnancy and, like any non-barrier method contraception, does not protect against infection from sexually transmitted diseases.一曼月乐®是用来防止怀孕和生产，如同任何非屏障避孕方法，不保护免受感染由性传播疾病。