common data record的意思|示意

However, in many cases, an entity of importance is a subset of a record, or spans several tables and requires data to be joined through a common key.

但是，在很多情况下，重要的实体是一个记录的一个子集，或者跨多个表，需要通过公共键链接数据。

A set of seismometers whose output is sent to a common data channel to record a seismic trace. A large group is known as a patch.

一组地震仪，其输出传送到共用的数据通道来记录地震道。一个大规模的组合被称为大面积组合。

The author realizes a fast and large capacity storage system using common hard disk to record and gives an answer to the problem of storage of large data in portable instruments.

在此基础上，给出了数据高速流盘的思想和方法，实现了利用硬盘作为存储载体的高速大容量数据存储系统，解决了便携式系统大容量数据存储的问题。