“水力的”的英语？

采购产品马达的油, 水力的油, 齿轮油, 油脂, 汽车关心产品和冬天产品油和润滑物.Motor Oil, Hydraulic Oil, Gear Oil, Grease, Car Care Products and Winter Products Oil and Lubricants.此外, 在水的涡凹和流程特性上的一些实验的研究水力的节流阀被介绍.Besides, some experimental researches on the...