以净现值最大为优化目标，同时考虑采、选、冶三阶段因素，给出了地下开采矿体边界品位动态优化的方法。

Taking maximum net present value as an optimum target and considering factors in mining, milling and metallurgy, a dynamic optimum method for optimizing cutoff grade of underground orebody is given.

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以天红蛋、净皮甜、大红甜为样品，对石榴采后果皮褐变进行研究，结果发现：褐变与品种及贮藏温度有显著的相关性；

Pomegranate peel was very easy to brown after picking. The cultivars and storage temperatures were remarkably relative to the browning.

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