hydraulic
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.
Yes, and we must stop people walking on this floor until it's firm. It may be necessary to put up a notice saying Keep off. Another thing, we' ll have to drill a hole in the wall for the electric wires.