求翻译：叶片接力器为缸动式，因而操作油管无需往复运动，有利于受油器的密封。 叶片轴颈与轮毂体的密封采用由弹簧和油压双重压力的V型密封，磨损后也能自动密合，更换时不需拆下叶片，非常方便。是什么意思？

Blade servomotor acting for the cylinder, thus operating the pipeline without reciprocating motion, sealed by the oil cooler. Leaf journal and the hub body seal v seal adopted by the springs and hydraulic double pressure, wear and tear can also automatically seal replacement without removing the bla

Cylinder head for leaf relay server manually, therefore operating lines without reciprocating motion, to benefit the oil seal. Leaf journal to the hub with the seal and the oil pressure by spring pressure of the seal, V wear can also automatically close when they replace, is not necessary to remove

The leaf blade relay moves the type for the cylinder, thus the operation drill tubing does not need the reciprocal motion, is advantageous in the oil header seal. The leaf blade journal and the wheel hub body seal uses by the spring and the flowing tubing head pressure dual pressure V seal, after we

Blade servomotor for cylinder-and oil supply line without reciprocating motion, in favour of seal oil. Blade axle and wheels by springs and hydraulic double pressure body seals v-seal wear and also automatically after a tight fit, the replacement is not required to remove the blade, very convenient.

正在翻译，请等待...