电液的英文：
electrohydraulic

Get-type electro-hydraulic servo valve
射流管式电液伺服阀

Servos for large radars and launchers are either electro-hydraulic or all-electric
大型雷达和发射装置的伺服系统，不是电动-液压式的，就是全电动式的。

"Among them, CPC and EPC alignment system uses advanced wide band electro-optical detection, with electro-hydraulic servo control. "
其中,纠偏(CPC&EPC)系统采用国际上先进的宽带光电检测装置