名词中文翻译
中文翻译：可移动的防护装置
同义词：
['retractable guard', 'movable barrier例句：1. The new security system has a movable guard that can be raised to prevent intruders.（新的安全系统有一个可移动的防护装置，可以升起以防止入侵者。）']
例句：
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1. The new security system has a movable guard that can be raised to prevent intruders.
新的安全系统有一个可移动的防护装置，可以升起以防止入侵者。
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2. The police officer used a movable guard to keep the crowd back while he investigated the crime scene.
警察用一个可移动的防护装置来阻止人群靠近，同时调查犯罪现场。
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3. The movable guard was designed to provide additional safety for pedestrians crossing the busy street.
这个可移动的防护装置是为了在繁忙的街道上为行人提供额外的安全而设计的。