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1. Oxford American Dictionary

   time and motion study

   • IPA[taɪm ænd]

   美式

   • n.
     a procedure in which the efficiency of an industrial or other operation is evaluated

   • noun: time and motion study, plural noun: time and motion studies

2. • 釋義

   n.

   名詞

   • 1. a procedure in which the efficiency of an industrial or other operation is evaluated a recent time and motion study shows that seven additional workers are needed
3. • 更多解釋

   time and motion study

   英式

   • n.
     a procedure in which the efficiency of an industrial or other operation is evaluated: a recent time and motion study shows that seven additional workers are needed

   Oxford Dictionary