The field of inquiry has narrowed down to five persons.

调查的范围已经缩小到只剩5个人了。

《新英汉大辞典》

Finally, it creates an inquiry context for group member and sets the member name syntax field in the inquiry context structure and returns pointer to created inquiry context structure to the caller.

最后，为组成员创建查询上下文，设置查询上下文结构中的成员名语法字段，把创建的查询上下文结构的指针返回给调用者。

youdao

The handle thus obtained is copied into the appropriate field of endpoint inquiry context structure.

把获取的句柄复制到端点查询上下文结构的适当字段中。

youdao

S. is one of those rare thinkers that sees old problems in new ways, thereby transforming a field of inquiry.

FORBES: Getting Inside V. S. Ramachandran's Head

The field of inquiry also provides fascinating glimpses into people's lives during a time when weather was a bigger determining factor in their lives than it is today, and into the ways they found to adapt.

BBC: Snow in Baghdad, and other ancient climates

The IAAF, the governing organization of track and field, launched an inquiry, no?

NPR: Amputee's Lost Bid for Olympics Stokes Debate