以下为句子列表：
英文: It was concluded that the first sixteen harmonics of the Fourier descriptor were enough to represent the primary shape of pear, and the shape identification accuracy could reach 90%by applying the Fourier descriptor in combination with artificial neural n
中文: 研究发现该傅立叶描述子的前16个谐波的变化特性足以代表梨体的主要形状，采用傅立叶描述子与人工神经网络相结合的方法进行果形识别的精确率可达90%。
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