The slope formula of the image was derived.
导出了像逐点的斜率计算公式；
The blasting vibration of creep mass slope of Longtan hydropower station is observed, interpreted and analyzed. The experiential formula of decay for the blasting earthquake wave is obtained.
对龙滩水电站蠕变体边坡的爆破振动进行观测、分析和处理，得到了爆破地震波衰减经验公式。
In this paper we have introduced a general formula for computing the amount of astronomical solar radiation which falls on slope in any period.
本文给出了计算坡地上任何一段时期太阳辐射总量的普遍公式并详细分析了坡地上辐射季总量与年总量变化的特征。
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