Translation of "trial methods" into Chinese

Phrases similar to "trial methods" with translations into Chinese

• I used the trial and error method to hang the plates.我用反覆試驗的方法來掛盤子.
  我用反覆試驗的方法來掛盤子.I used the trial and error method to hang the plates.
• Methods A placebo controlled randomized double blind trial was performed. 方法前瞻性、随机、双盲、安慰剂对照的临床研究。
  安慰剂-placebo