[sukhoi-30mki]

More images at source

[Gaffer]

The first picture to me looks like and integration test bed for the radar and weapons control systems. Phased Arrays, 2Ds other radars etc. with weapons systems (e.g., CIWS, ES, etc.)

[navyguy]

I’d wager that half the technology on this thing is stolen from the US.

[gaijin]

Lots of Senkaku-related PLAN construction here, recently:

https://www.google.com/maps/place/Senkaku+Islands+%2F+Diaoyudao+Islands+%2F+Diaoyutai+Islands/@27.4684546,121.0994407,9552m/data=!3m1!1e3!4m2!3m1!1s0x3458ce6da29581df:0x535d56e6ed00d8ea