Difference
… differ in a number of respects
… differs considerably from …
… differs significantly from …
… is or are markedly different from or to …
… differs slightly from …
… differs only in small respects from …
an important difference or distinction
though the similarity is clear, there is a crucial or an important difference
There is a fundamental difference between …
There are a number of important differences, not only in …, but also …
What differentiates … is …
a distinction between … and …
to make or draw a distinction between …
A distinction must be made between …
It is important to distinguish between …
This distinction is important, because …
Differentiation of … is important for two etc. reasons
maintenance of this distinction is important because …
… poses different problems to …
to differentiate …
… is not consistent with …
this is not the case for …
the same is not true for …
the analogy does not hold for …
this parallel does not, however, extend to …
The disparity between the results may be due to …
The discrepancy between … and … may be explained by …
… deviates from …
… diverge considerably or widely
diverging views of …
unlike …
… not necessarily identical or the same
Some …, while or whereas others …
… runs counter to …
… at odds with current theories of …
the dividing line between … and …
the dichotomy of or between … and …
… and … are mutually exclusive