Quote:Our economic expansion has realized the transition from quantitative change to qulitative change.
This sentence refers to the subject of a previous sentence, and has no meaning by itself. We do not actually know what is being changed in this sentence.
What we do know is that there used to be a change in the quantity of something, and now there is a change in the quality of that something.
I do not think this is what you
meant to say, however.
Quote:With the economic expansion the transition from quantitative
to qualitiatve was made.
This sentence also refers to the subject of a previous sentence.
This means that something used to have to do with quantity, and now it has to do with quality.
This is more likely what you meant to say.
Quote:The transition of economic development, from quantitative to qualitative, will be made.
This is completely different from either of the previous two. Not only is it now in future tense instead of past tense, but it does not rely on any previous sentences, and the meaning is different.
This means that sometime in the future, the economic development will manifest itself in the form of increases in quality rather than increases in quantity.
This doesn't make much sense since the economy is measured quantitatively, so any change in the economy must also be measured quantitatively.
I cannot rewrite your sentence properly for you, because I have not the slightest idea what you are trying to say...all of these sentences mean different things so I don't know which one it is that you really mean.