Zhèngfǔ zhìdìng le duō gè yìngjí yù'àn, yìngduì zìrán zāihài.
The government formulated several emergency contingency plans to deal with natural disasters.
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预案 is a formal/administrative term common in government documents, emergency management, and project planning. It refers specifically to a plan prepared in advance for anticipated scenarios, especially emergencies.