What about a cross reference?

交叉参考呢？

A cross reference already exists.

交叉参照已经存在。

This gives you a cross reference check.

这给你一个交叉引用检查。

It is not permitted to delete a master cross reference.

不允许删除一个主控交叉参照。

The specified naming context is missing a cross reference.

指定的命名上下文丢失了一个交叉参考。