experimentation
  實驗,試驗
  ex·per·i·men·ta·tion /ɪkˌspɛrəmənˈteʃən, ˌmɛn , ˌspɪr-/ 名詞
  實驗,實驗法
  Ex·per·i·men·ta·tion n. The act of experimenting; practice by experiment.
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  experimentation
       n 1: the testing of an idea; "it was an experiment in living";
            "not all experimentation is done in laboratories" [syn:
            experiment]
       2: the act of conducting a controlled test or investigation
          [syn: experiment]