denoting, relating to, or operated by a liquid moving in a confined space under pressure
水(液)压的,水(液)力的
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hydraulic fluid 水压流
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hydraulic lifting gear .水压起重装置。
of or relating to the science of hydraulics
(与)水力学(有关)的。
(of cement)hardening under water
(水泥)水下凝固的,水硬的。
"early 17th cent.: via Latin from Greek