求翻译：据中国经济网记者了解，汾阳市是著名的核桃产区，已有2000余年的核桃种植历史，汾州核桃以其个大、壳薄、肉厚、取仁容易、出仁率高、清香可口而享誉天下，早在清朝咸丰年间就已经出口海外。是什么意思？

According to the China economic net reporter learned that of walnut in fenyang city is a famous producing area, has more than 2000 years of history of walnut, fen State with its large, thin shell of walnut, easy meat is thick, take jen, Jen rate high, fragrant and delicious and renowned in the world, as early as between Qing dynasty salt harvest have been exported overseas.