名词短语
中文翻译：单轨铁路接力半自动闭塞系统
同义词：
['single track', 'single rail', 'relay system', 'semi-automatic', 'automatic block system']
例句：
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1. The single track railway is the main transportation link in this area.
这条单轨铁路是该地区的主要交通干线。
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2.The relay system ensures that the trains can safely pass each other without collision.
接力系统确保列车在安全地相互通过时不会相撞。
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3. The semi-automatic control system allows for quick and easy adjustments to the train's speed and direction.
半自动控制系统允许快速而简单地调整列车的速度和方向。