文档介绍：本科毕业设计(论文)外文翻译 1 Hydraulic System Hydraulic presser drive and air pressure drive hydraulic fluid asthe transmission ismade according tothe 17th century, Pascal's principle of hydrostatic pressure todrive the development ofanemerging technology, the United Kingdom in1795 ?Braman Joseph (Joseph Braman ,1749-1814), in London water asamedium toform hydraulic press used inindustry, the birth ofthe world's first hydraulic press. Media work in1905 will bereplaced byoil-water and further improved. After the World War I(1914-1918) ,because ofthe extensive application ofhydraulic transmission, especially after 1920, more rapid development. ponents inthe late 19th century about the early 20th century, 20years, only started toenter the formal phase ofindustrial production. 1925 Vickers (F. Vikers) the invention ofthe pressure balanced vane pump, ponents for the modern industrial orhydraulic transmission ofthe gradual establishment ofthe foundation. The early 20th century G ?Constantimscofluctuations ofthe energy carried out bypassing theoretical and practical research; In1910 onthe hydraulic transmission (hydraulic coupling, hydraulic torque converter, etc.) contributions, so that these two areas ofdevelopment. The Second World War (1941-1945) period, inthe United States 30% of machine tool applications inthe hydraulic transmission. Itshould benoted that the development ofhydraulic transmission inJapan than Europe and the United States and other countries for nearly 20years later. Before and after in1955, the rapid development ofJapan's hydraulic drive, set upin1956, "Hydraulic Industry." Nearly 20to30years, the development ofJapan's fast hydraulic transmission, aworld leader. Hydraulic transmission There are many outstanding advantages, itis widely used, such asgeneral industrial use ofplastics processing machinery, the pressure ofmachinery, machine tools, etc.; operating machinery engineering machinery, construction machinery, agricultural machinery, automobiles, etc.; iron a