Leg: in a Biped, the lower limb, jointed at the knee, supporting the Body and used for walking and running.
腿：两足动物的下肢，与膝部连接，用于支撑身体并用来行走和奔跑。
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This paper introduces a hydraulic lift device with knee-jointed short flat pallet for repair of automobile, its operation and control principle, performance and characteristics are briefly related.