/haɪ'drɔ:lɪk; haɪ`drɔlɪk/
adj
1 of water moving through pipes 通过水管流动之水的.
2 operated by the movement of liquid 用水力驱动的
*a hydraulic lift 液压升降机
* hydraulic brakes 液压制动器
* a hydraulic engineer, ie one concerned with the use of water in this way 水利工程师.
3 hardening under water 水硬的; 在水中凝固的
*hydraulic cement 水硬水泥.

adj [usually before noun]
[Date: 1600-1700; Language: Latin;Origin: hydraulicus, from Greek, from hydraulis 'organ worked by water']
moved or operated by the pressure of water or other liquid
　a hydraulic pump
　hydraulic brakes
>hydraulically [-kli/