This is a Mi-25/Mi-35, essentially the export version of the Soviet-era Mil Mi-24 Hind helicopter gunship.

上图是米-25或米-35攻击直升机，一般来说，这是前苏联时期米-24雌鹿攻击直升机的出口版本。

youdao

New aircraft will include Su-34 and Su-35 fighters, and Mi-26 transport and Mi-8 gunship helicopters, AP adds.

BBC: Russia plans $650bn defence spend up to 2020