Moreover, a necessary and sufficientcondition for an abelian group to have test elements is specified.Also, the test elements are determined.是什么意思_Moreover, a necessary and sufficientcondition for an abelian group to have test elements is specified.Also, the test elements are determined.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句