There are several key problems with this approach to expanding the database.
在扩充数据库的过程中有几个关键问题。
This paper involves several key technological problems in the design of hardware and software.
文中涉及到硬软件设计中的几个关键性技术问题。
This paper involves several key technological problems in the design of hardware and software.
文中涉及到硬软件设计中的几个关键性技术问题。
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