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| petroleum resources conservation | |||
| conservation of petroleum resources Controlled utilization, protection and development of exploited and potentially exploitable sources of crude oil to meet current demand and ensure future requirements (在控制下利用、保护和发展已开发及潜在可开发的原油资源，以满足目前需要及确保未来的需求。) | |||
| oil conservation | |||
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石 油 资源保护 : 6 phrases in 2 subjects |
| Economy | 1 |
| Environment | 5 |
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