释义长效避孕药物节育环用硅橡胶制成内含避孕药物置宫腔后药物慢性泄放
The IUD is made of silicone rubber containing a contraceptive drug that is placed in the uterine cavity after chronic release of the drug
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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