名词
中文翻译：可调节的防护装置
同义词：
['adjustable guardrail', 'adjustable barrier', 'adjustable guardrails']
例句：
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1. The adjustable guardrails on the escalator ensure safety for all passengers.
自动扶梯上的可调节护栏确保所有乘客的安全。
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2. The adjustable guardrails on the bridge are designed to prevent accidents.
桥梁上的可调节护栏旨在防止事故。
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3.The adjustable guardrails on the playground were installed to protect children from falling.
游乐场的可调节护栏被安装来保护儿童免受跌落伤害。