The development of female flower, megasporegensis and the development of embryo of Fraxinus mandshurica were observed by the paraffin sectioning method.是什么意思_The development of female flower, megasporegensis and the development of embryo of Fraxinus mandshurica were observed by the paraffin sectioning method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句