方法：通过探讨虫瘿发育规律及其发育过程单宁酸含量的变化。

Method: The regulation of development and tannin amount during whole growing stage were studied.

youdao

方法：通过探讨虫瘿发育规律及其发育过程单宁酸含量的变化。

Method: The regulation of development and tannin amount during whole growing stage were studied.

youdao