黄花梨是中国的一种重要水果，果径和果面缺陷面积是黄花梨分级的两项关键指标。
Huanghua pear is an important fruit in China. The fruit diameter and surface defects are important indices in the classification of Huanghua pear.
果蔬的力学特性是设计收获、分级和加工系统的重要理论依据之一。
The mechanical properties of fruit and vegetable are important in design of harvesting, sorting and processing system.
首次将参考形状分析法用于果形判别，利用人工神经网络对果形进行识别和分级。
Based on overall analysis of apple shape, originally, the reference shape method was used in apple shape feature extraction.
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