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

motion study

motion study是什么意思、motion study怎么讀

motion study漢語翻譯

動(dòng)作研究
【經(jīng)】 動(dòng)作研究

motion study英語解釋

名詞 motion study:

  1. an analysis of a specific job in an effort to find the most efficient method in terms of time and effort
    同義詞：time and motion study, time-and-motion study, time-motion study, time study, work study
0
糾錯(cuò)