Has the importing country digested and absorbed the imported weapons and equipment?

Most countries that import weapons are unable to absorb and digest them. Take China as an example. The so-called absorption and digestion means that the mature products of Russian wool will be completely made in China after many years. By that time, a new generation of weapons will have come out long ago. In this way, we can only continue such an endless cycle: backwardness, introduction, absorption and digestion, backwardness and re-introduction.