名词
中文翻译：永久道路清障机
同义词：
['permanent way clearer', 'permanent way clearer machine']
例句：
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1. The permanent way clearer is used to remove debris from the road surface during maintenance.
永久道路清障机用于维护期间清除路面上的杂物。
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2. The construction of this machine has greatly improved the efficiency of road maintenance work.
这种机器的建造大大提高了道路维护工作的效率。
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3. The use of this machine can help reduce the number of accidents caused by debris on the road.
使用这种机器可以帮助减少道路上因杂物引起的事故数量。