求翻译：他与小组成员出色地完成了Economical Information 调研assignment，在我校学生中展开关于图书馆利用与满意情况调调查。问卷设计严谨、全面，采用留置问卷法之后回收率也很高。是什么意思？

He and the team well done Economical Information research assignment, students in my school started on library use and satisfaction survey adjustment. Questionnaire design rigorous, comprehensive, and the use of indwelling questionnaire after the recovery is also high.

He and members of the Panel Economical Information brilliantly completed the investigation and research assignment, in school I started in on the Library students use regulation and investigation with satisfaction. Questionnaire design coherent, comprehensive, and 289,100 questionnaires used recover

He completed Economical Information with the panel members to investigate and study splendidly assignment, launched in my school student about the library use and satisfaction situation adjusts the investigation.The questionnaire design is rigorous, is comprehensive, after uses the leaving alone que

He and members of the group successfully completed the Economical Information research assignment, students in our school, expand regulation on library use and satisfaction survey. Survey design and rigorous, comprehensive, high recovery rate after indwelling questionnaires.

He and group member has finished Economical Information and surveyed and studied assignment splendidly, launch utilizing adjusting the investigation with the satisfactory situation about the library in the students of our school. The questionnaire design is rigorous, overall, it is very high to adop