duumvirate

n.

二人共职，二头政治；

1. So next year could be a tricky one for the awkward duumvirate that will by then be running Russia.
   所以明年会是不安定的一年，到那个时候，俄罗斯将实行笨拙的双头政治。

Mechanism and Stereoselectivity of a Dual Amino-Catalyzed Robinson Annulation: Rare Duumvirate Stereocontrol
Partial continuations as the difference of continuations a duumvirate of control operators
Partial continuations as the difference of continuations a duumvirate of control operators
Year one of the Yudhoyono–Kalla duumvirate
A Contested Franco-German Duumvirate
The basic model of duumvirate in the “power-society” system
The basic duumvirate model in the power-society system
A basic model of a duumvirate in a "power-society'' system.
The mathematical model of duumvirate
Putin and Medvedev: Russia's Duumvirate?