Good answer. Congratulations.
I'm paraphrasing it a bit.
We have completely stolen the technology for production of Su-27 (work at least, a copy of it even to be able to fly). However, to reproduce on their own engine in our mind is not enough.
I wrote this not to argue with you.
That is how we perceive your technical "breakthrough."
Do not be surprised why some Russian looks at you with a "high". Perhaps the difference of mentality or culture. In Russia, the theft is considered a bad exercise.
If you, in silence, stole. You could justify it. Trying to make up for the technological gap (many engaged in this, it's almost normal.) Save money (to spend on social services). However, some Chinese comrades lost touch with reality. Loudly ranting about the stolen technology (for them it is quite normal.) Thus, they only damage the image of the Chinese nation. I highly respect and treat her very positive). Do not think I wrote the text of rudeness. Just think how can respond to your words in other countries.
The effect of the same words in the nutria, the country and abroad may differ diametrically. Very good position for you would be.
Recognition of borrowing technology. Yes, we borrowed. However, we borrow the most advanced technology in the future and it will allow us to develop the new Chinese technology.
For example. Su -27 is the best aircraft in its class. Therefore we have chosen this model for the design of its aircraft. To the best of their technical strength, we try to make the Chinese analog of the same level.
At least it will sound - an adult.
Now I mostly listen to baby talk. Su-27 crap. Our analogue of this is pure gold. Only for some reason, our industry can not create some of the basic components to this plane.
The dissonance of thinking.