以下为句子列表：
英文: Based on the experiment data of summer maize in Irrigation Experimental Station of North west A&F University during 2001~2004, a normalized model between leaf area index (LAI) and accumulated temperature was developed.
中文: 摘要通过对连续4a夏玉米叶面积指数的研究，建立了夏玉米叶面积指数与积温之间的归一化模型。
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英文: In some xerophytes, such as cacti, most of the leaves are modified into spines, greatly reducing the leaf area for transpiration; the photosynthetic function of the leaves is taken over by the green stems.
中文: 在一些旱生植物中，如仙人掌，大部分的叶片都特化为刺，极大的减少了叶片区域的蒸发作用，同时光合作用为绿色的茎所承担。
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英文: Rice yield reached the maximum at a leaf area index of seven to nine in indica-japonica cross variety, and at a leaf area index of about five in japonica variety, respectively.
中文: 籼-粳稻杂交品种的叶面积指数为7~9时水稻产量最高而粳稻品种最佳叶面积指数为5。
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英文: The Earth\'s albedo varies mainly through varying cloudiness, snow, ice, leaf area and land cover changes.
中文: 地球的反射率主要因云的变化、冰、雪和土地覆被状况的改变而变化。
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