名词短语
中文翻译：计划外的货运流量
同义词：
['unscheduled cargo traffic', 'irregular freight flow']
例句：
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1. The suddendrop in oil prices has led to a surge in out-of-plan freight traffic.
油价的突然下跌导致非计划货运流量激增。
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2. The government is considering implementing new regulations to control the out-of-plan freight traffic.
政府正在考虑实施新的法规来控制非计划货运流量。
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3. The port authorities are working on improving their systems to better manage out-of-plan freight traffic.
港口当局正在努力改进他们的系统，以更好地管理非计划货运流量。