When right leg is behind you, shift your weight onto it while bending right knee and lifting right heel.
当右腿已经滑至身后，把身体重量放在右腿上，弯曲膝盖，并提起脚跟。
The traveling crane maintains rigidity restriction with the lifting appliance in rapid horizontal shift, thus avoiding free swing of the lifting appliance.
且当行车快速水平移动时与吊具保持刚性约束，避免 吊具发生自由摆动。
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