不稳定的秋叶叶绿素分子吸收的能量，不会像在完好的夏叶中吸收的能量那样立即传输到有用的产品和工艺流程中去。
The energy absorbed by the chlorophyll molecules of the unstable autumn leaf is not immediately channelled into useful products and processes, as it would be in an intact summer leaf.
另一幅画则逼真地呈现了一只大西瓜的藤叶从边缘开始枯萎的情景，正如人们在夏末看到的那样。
The leaves of a fat watermelon, exquisitely depicted on paper, are beginning to rot around the edges, just as they would at the end ofsummer.
高温下的开花特性、叶解剖结构和光合特性可以作为夏菊耐热性评价的重要指标。
And the blooming traits, leaf anatomic structure and photosynthetic characteristics can be used as heat-tolerance evaluation indexes.
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