pre-quaternary 中文意思是什麼
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( 1 ) in the part of pre - quaternary geomorphologic surface research, the method of geomorphologic surface identification and comparison is summarized systematically
一、文中對魯中南山地地貌面的認定、對比方法進行了理論總結。 -
Based on the combination of all kinds of basic morphologic operators which leads to different top and bottom hat transformations, filtering and threshold enhancement are used to pre - process the image, by choosing appropriate structure elements, quaternary strata can be segmented by morphologic methods
經實驗結果得出，利用數學形態學的基本運算組合成的各種運算元：高、低帽變換、濾波與閾值截取相結合的增強方法，通過選擇合適的結構元素，對圖像進行預處理后，就可以用形態學方法對第四系地層進行影像分割。
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