Unverified85% confidenceDecision RuleTime unknown
两轮助行器(前两轮+后两脚垫)是固定式与四轮式的折中:前轮推行省力、后脚垫下压产生阻力自动固定,适合需要一定支撑但抬固定式太费力的中度虚弱者
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
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