supporting leg

alternating knees... ... 单手操 single movement practice 支撑腿 standing leg;supporting leg 侧迈步 take a step sideways ...

... - 可调节护头垫; Adjustable head pad - 支撑脚架; Supporting leg - 一按式角度调节; One-Touch reclining adjustment ...

...)将设在框架上的中间位置，而在促动器下方，还会安装支撑架(supporting leg)以支撑造波板。