英语词汇“graefenberg, ernst”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	graefenberg, ernst
释义	Graefenberg, Ernst Graefenberg, (Gräfenberg), Ernst, German gynecologist in U.S., 1881-1957. Graefenberg ring - obsolete term for a silver or silkworm gut ring designed for insertion into the uterine cavity as a means of contraception.
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Graefenberg, Ernst