Extension model for Xiangla variety series of Xiangyan brand hot pepper, its operation mechanism and achievement were studied in this paper.
文章以湘研牌湘辣系列辣椒品种的推广为题材，总结和探讨了其推广模式的构成及其运作机理和推广过程中取得的绩效。
Compared with Bengang 1700 hot rolling mill, the strip rolling product has smaller crystal granularity, higher strength value, and lower extension rate.
从热轧产品看：与本钢1700热连轧机相比，晶粒尺寸略小，强度值略高，延伸率略低。
Solar energy heating system, which is a new way to provide heating and domestic hot water for residents, is a technical extension in solar thermal applications.
太阳能采暖系统是一种满足住户采暖和热水供热需求的新型太阳能热水系统，是太阳能热利用技术的延伸。
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