http://lt.cjdby.net/thread-1092699-1-1.html
Development of J-11 jets to J-19 jets are as follows:
1): F -11: Chinese-developed Su-27SK variant. (Shenyang)
2): J -12: Cancelled single engine interceptor. (Nanchang)
3): J -13: Cancelled 1971 single engine fighter. (Shenyang)
4): J-J -10 -14:21 Twin-engine J-10 upgrade. (Chengdu)
5): F -15: Upgraded carrier-based J-11B. (Shenyang)
6): J -16: Upgraded J-11BS strike fighter, comparable to the latest F-15K. (Shenyang)
7): J -17: Heavy fighter-bomber stealthy variant of the J-11B, similar to the Su-34. (Shenyang)
8): J -18: Heavy stealth carrier-based fighter (developed from J-15). (Shenyang )
9): F -19: Heavily upgraded J-11B 5th-generation variant. To serve alongside the J-20. (Shenyang)
Some of your translations kinda wrong, let me see if I can do better:
original text said:
四代重歼型号为歼-20,那么,歼-11到歼-19型号发展具体情况如下:
1):歼-11:中国SU-27仿制版.(沈阳).
2):歼-12:20世纪六,七十年代研发的超轻型歼击机;(下马)(南昌).
3):歼-13:20世纪七,八十年代研发的接替歼-6的单发常规布局中型歼击机;(下马)(沈阳).
4):歼-14:21世纪初在歼-10基础上发展的双发隐形重型歼击机,俗称"大十",后因四代重歼研发顺利,而下马转入方案技术储备.(成都).
5):歼-15:中国SU-33信息化提升版,是歼-11B的舰载发展型,是中国第一代舰载战斗机.(沈阳).
6):歼-16:中国SU-30MKK信息化提升版,是在歼-11BS基础上,瞄准F-15K/SG技术水平发展的远程战斗轰炸机.(沈阳).
7):歼-17:在歼-11B基础上发展的类似SU-34的并注入隐形技术的新一代远程重型战斗轰炸机.(沈阳).
8):歼-18:在歼-15基础上,注入大量四代机技术而发展的新一代隐形舰载战斗机,该机研发方案于2009年与歼-19研发方案一同被评审通过.(沈阳)
9):歼-19:是歼-11B高端四代机化隐形大改,该机作为四代重型多用途歼击机与歼-20搭配使用.(沈阳)
1):
J-11: Chinese copy of SU-27 (Shenyang)
2):
J-12: Super light single-engine interceptor project in 1960s-70s (Cancelled)(Nanchang)
3):
J-13: Medium weight, conventional layout single-engine interceptor project in 1970s-80s(Cancelled)(Shenyang)
4):
J-14: Project initiated at the beginning of 21st Century, heavy-weight twin-engine stealth fighter developed from the basis of J-10, aka "Big 10", later cancelled due to 4th-gen fighter R&D proceeding on schedule, experience garnered are to be used on future projects.(Chengdu).
5):
J-15: Chinese version of SU-33 with avionics upgrades, carrier-borne version of J-11B, 1st generation of Chinese carrier-borne fighter. (Shenyang).
6):
J-16: Chinese version of SU-30MKK with avionics upgrades, variant developed from J-11BS, this is to be a long-ranged fighter-bomber with similar technological level as to F-15K/SG. (Shenyang).
7):
J-17: new generation of long-ranged fighter-bomber based on J-11B, to something like the SU-34 but integrated with certain stealth technology. (Shenyang)
8):
J-18: new generation of carrier-borne fighter with stealth characteristics, develop from the basis of J-15基础上, integrated with many of the 4th-gen technology. This proposal, along with that of J-19, have received the go-ahead in 2009. (Shenyang)
9):
J-19: high-end, major modification to J-11B design to 4th-gen stealth standard, this is designed as a 4th-gen heavy-weight multi-role fighter to serve alongside the J-20.(Shenyang)
note: the original text "4th-gen" apparently using the Western standard reference, 5th-gen would be following the Russian reference.