【Key words】 energy development in rural areas; crop straw gasification; driving force factors; restriction factors; commercial development
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Population change was the unique and most active driving force while the policy, economy and technical factors were the most important external driving forces.
人口变化是城市土地利用集约度最独特、最具活力的驱动力，政策、经济和技术因素是重要的外部驱动力。
The driving force of the wane of Xifeng Hot Springs tourism is mixed with internal and external factors.
息烽温泉旅游地衰败的驱动力具有外部影响因素和内部影响因素。
This paper discussed the two important factors that influence the driving force and displacement of wheel with using the new device.
针对影响轮胎附着性能的两大因素，分析了影响轮胎驱动力和驱动位移的土壤参数；
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