A positive correlation existed between sedimentation value and average sunshine time in the period from heading to maturation.
沉降值、降落值与此期间的平均日照时数均呈正相关。
Meanwhile, South Africa's average sunshine time is 2500 hours, which is one of the world's solar energy resource-rich countries.
同时，南非平均年日照2500小时，是全球太阳能资源最丰富的国家之一。
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