求翻译：测试集组：从字面意义上看，测试集组就是几个测试集的组合。实际含义也是如此。测试集组的作用是为了更好的管理和分类测试集。是什么意思？

Test set groups: the literal sense, test set group is a combination of several test sets. Actual meaning as well. Test set group is the role of classification in order to better manage and test sets.

Test set group: from literal sense, test set group is several test set the combination. This is also true practical meaning. Test set group is the role in order to better manage and classification test group.

Test collection group: Looked from the wording significance that, the test collection group is several test collection combination.The actual meaning also is so.The test collection group's function is for a better management and the classified test collection.

Test Gallery group: on the face of it, test set group is the combination of several test sets. Implications as well. Test sets groups for better management and classification of test set.

Test Gallery group: on the face of it, test set group is the combination of several test sets. Implications as well. Test sets groups for better management and classification of test set.