adj.不可變的；不變的

If the data is immutable, it may be practical to allow it to be de-normalized. 假如數(shù)據(jù)是不可變的，那么允許它不規(guī)格化是很實(shí)際的。

In summary, data that is distributed must be both immutable and stable. 總之，分布式的數(shù)據(jù)就必須是不可變的，穩(wěn)定的。

If the data is immutable, it may be practical to allow it to be de-normalized. 假如數(shù)據(jù)是不可變的，那么允許它不規(guī)格化是很實(shí)際的。