guardrail

guardrailguardrailD.J.:[ˈɡɑ:dreil]K.K.:[ˈɡɑrdˌrel]n.1.■栏杆,护轨

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guardrail['ɡɑ:dreil]n.1.■(楼梯的)栏杆;扶栏[亦作 guard railing]2.■【铁路】护(轮)轨3.■【船舶学】固定护舷木