回溯相容 meaning in English

backward compatible

While we have made tremendous investments in windows vista to ensure backwards compatibility , some of the system enhancements , such as user account control , changes to the networking stack , and the new graphics model , make windows vista behave differently from previous versions of windows
虽然我们为了确保windows vista的高度回溯相容性投入大心思，但有些例如使用者帐户控制的系统增强功能对于网路堆叠的变更以及新的图形模式，仍然使windows vista展现出与旧版windows不同的运作方式。
This updated runtime is a replacement for the vsto 2005 runtime and is fully backward compatible with solutions authored using vsto 2005 . it contains enhancements that help solutions built on microsoft office 2003 with vsto 2005 run more reliably in the 2007 microsoft office system than they would with the original vsto 2005 runtime
这个更新的执行阶段是用来取代vsto 2005 runtime ，与使用vsto 2005设计的方案具有完全回溯相容性，功能更为强大，使得在microsoft office 2003上以vsto 2005建置的方案，在2007 microsoft office system上执行时，比在原始的vsto 2005 runtime上执行更可靠。