他对那个课题进行了大量的研究。
国内外学者对此进行了大量的研究和探讨。
Researchers from home and abroad have done a lot of research on it.
围绕路径规划，学者们进行了大量的研究工作。
在处理辐射性废弃物方面已进行了大量的研究工作。
Much research has been done on the disposal of radioactive wastes.
到目前为止许多对动机和外语学习进行了大量的研究。
Foreign language learning motivation research is just one of the important signs in this turn.
关于这个题目，已经进行了大量的研究，并有大量的发现。
Much research has been done on this subject and much has been discovered.
到目前为止，许多研究者对外语学习动机进行了大量的研究。
Till now, many researchers have done a lot of research on foreign language learning motivation.
对于企业的性质问题，国内外学者进行了大量研究，取得了很大进展。
The Economists have made very great progress in their research on the enterprise nature.
清华大学已经在这个方面进行了大量的基础性研究。
Tsmghua University has done much basic research in this field.
为此，国内外已进行了大量的开发研究工作。
Therefore, both at home and abroad has done a lot of research and development work.
有大量的学者对此进行了研究，然而还存在较大的争议。
Many scholars have researched into this issue. However, there still exist many disputes.
到目前为止西方学者已经对此进行了大量的实证研究。
And western scholars have done much empirical research about it.
我进行了大量的搜索和研究。
本文通过做大量的试验，对数控电解机械复合切割进行了研究。
This paper make research of numerical control electrochemical cutting through many experiments.
本文通过做大量的试验，对数控电解机械复合切割进行了研究。
This paper make research of numerical control electrochemical cutting through many experiments.
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