麻豆精品在线久草熟女|色情一区二区三区|国产一级片国产特级片|亚州特级黄片在线免费观看|中文人妻少妇有码Av|日逼黄色毛片久久精品久久日|欧美黄色短片网站|无码在线资源黄色免费看视频|日韩无码1区2区3区|亚洲夜色在线五月天激情影院

單詞乎

closed system

closed system是什么意思、closed system怎么讀

closed system漢語翻譯

【計】 閉合系統(tǒng)
【化】 封閉系統(tǒng)
【經(jīng)】 閉鎖制度

closed system例句

  1. The purpose of this seminar is to reform the old closed system so as to establish the new system of educational assessment.
    研討會旨在改革舊的封閉式的評價制度，從而建立新的教育評價體系。
0
糾錯