It includes reading experimental textbook and reference, understanding experimental goal definitely, comprehending experimental content, steps, operating methods and notices.
阅读实验教材、教科书和参考资料中的有关内容，明确实验目的，了解实验内客、步骤、操作方法、注意事项。
The biologist Sydney Brenner chose the roundworm as an experimental animal in 1974 with this goal in mind.
1974年生物学家西德尼·布雷纳把蛔虫选作实验对象时就有这个目标。
The surgery is experimental, part of a research program with the ultimate goal of helping combat veterans with severe pelvic injuries, as well as cancer patients and accident victims.
这次手术是实验性的，属于一个研究项目的一部分。该项目的终极目标是给骨盆区有严重伤残的退伍军人、癌症病人和在事故中受伤的人提供帮助。
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