对照现场试验的英文

• controlled field trial

• 对照:    contrast; check against know ...
• 现场:    scene
• 试验:    experiment; test; trial
• 现场试验:    field experiment; field test; field investigation; field; field runs; field testing; field trial/test; floor inspection; in situ test; in-situ test; in-situs test; on site test; on site trial; on-job trial; on-site trial; on-the-spot experiment; test in place; test on site
• 对…作现场试验:    field-test