求翻译：大量地收集资料。收集资料可以了解所选课题的背景和研究的现状。在已经研究清楚的问题，就不需要再次研究，新的研究应在过去的基础上继续创新。是什么意思？

A large number of data collection. Collect information to understand the status of the background of the selected topics and research. Have studied the problem, do not need to look again, new studies should continue to innovate on the basis of the past.

A large collection of information. You can gather information about the selected topics of research background and the status quo. It has been studied in the problem, and there will be no need to look again, the new research should be on the foundation of the past continue to innovate.

Massively data collection.The data collection may understand chooses the topic the background and the research present situation.In already studied the clear question, did not need to study once more, the new research should continue in the past foundation to innovate.

A substantial collection of information. Collecting information to understand the background and present situation of research on selected topics. Issues already clearly, once again, you do not need to study new research should be continued on the basis of past innovations.

正在翻译，请等待...